A Study Plan To Cure JavaScript Fatigue

Like everybody else, I recently came across Jose Aguinaga’s post “How it feels to learn JavaScript in 2016”.

It’s clear that this post hit a nerve: I saw it reaching the top spot on Hacker News not once but twice. It was the most popular post on /r/javascript as well, and as of right now it has over 10k likes on Medium — which is probably more than all my own posts put together. But who’s counting?

This didn’t come as a surprise though: I’ve known for a long time that the JavaScript ecosystem can be confusing. In fact, the very reason why I ran the State Of JavaScript survey was to find out which libraries were actually popular, and finally sort the signal from the noise.

But today, I want to go one step further. Instead of simply complaining about the state of things, I’m going to give you a concrete, step-by-step study plan to conquering the JavaScript ecosystem.

Who Is This For

This study plan is for you if:

  • You’re already familiar with basic programming concepts like variables and functions.
  • You might have already done back-end work with languages such as PHP and Python, and maybe used front-end libraries such as jQuery for a few simple hacks.
  • You now want to get into more serious front-end development but are drowning in frameworks and libraries before you’ve even started.

Things We’ll Cover

  • What a modern JavaScript web app looks like
  • Why you can’t just use jQuery
  • Why React is the safest pick
  • Why you may not need to “learn JavaScript properly” first
  • How to learn ES6 syntax
  • Why and how to learn Redux
  • What GraphQL is and why it’s a big deal
  • Where to go next

Resources Mentioned Here

Disclaimer: this post will include a few affiliate links to courses by Wes Bos, but the material is recommended because I genuinely think it’s good, and not just because of the affiliate scheme.

If you would rather find other resources, Mark Erikson maintains a great list of React, ES6, and Redux links.

JavaScript vs JavaScript

Before we start, we need to make sure we’re talking about the same thing. If you google “Learn JavaScript” or “JavaScript study plan”, you’ll find a ton of resources that teach you how to learn the JavaScript language.

But that’s actually the easy part. While you can definitely dig deep and learn the intricacies of the language, the truth is most web apps use relatively simple code. In other words, 80% of what you’ll ever need to write web apps is typically covered in the first few chapters of your typical JavaScript book.

No, the hard problem is mastering the JavaScript ecosystem, with its countless competing frameworks and libraries. The good news is, that’s exactly what this study plan focuses on.

The Building Blocks Of JavaScript Apps

In order to understand why modern JavaScript apps seem so complex, you first have to understand how they work.

For starters, let’s look at a “traditional” web app circa 2008:

  1. The database sends data to your back-end (e.g. your PHP or Rails app).
  2. The back-end reads that data and outputs HTML.
  3. The HTML is sent to the browser, which displays it as the DOM (basically, a web page)

Now a lot of these apps also sprinkled in some JavaScript code on the client to add interactivity, such as tabs and modal windows. But fundamentally, the browser was still receiving HTML and going from there.

Now compare this with a “modern” 2016 web app (also known as the “Single Page App”):

Notice the difference? Instead of sending HTML, the server now sends data, and the “data to HTML” conversion step happens on the client instead (which is why you’re also sending along the code that tells the client how to perform said conversion). For Best web design company check Vivid Designs

This has many implications. First, the good:

  • For a given piece of content, sending only data is faster than sending entire HTML pages.
  • The client can swap in content instantly without having to ever refresh the browser window (thus the term “Single Page App”).

The bad:

  • The initial load takes longer since the “data to HTML” codebase can grow quite large.
  • You now need a place to store and manage the data on the client too, in case you want to cache it or inspect it.

And the ugly:

  • Congratulations — you now have to deal with a client-side stack, which can get just as complex as your server-side stack.

The Client-Server Spectrum

So why go through all this trouble if there are so many downsides? Why not just stick to the good old PHP apps of old?

Well, imagine you’re building a calculator. If the user wants to know what 2 + 2 is, it doesn’t make sense to go all the way back to the server to perform the operation when the browser is perfectly capable of doing it.

On the other hand, if you’re building a purely static site such as a blog, it’s perfectly fine to generate the final HTML on the server and be done with it.

The truth is, most web apps fall somewhere in the middle of the spectrum. The problem is knowing where.

But the key thing is that the spectrum is not continuous: you can’t start with a pure server-side app and slowly move towards a pure client-side app. At some point (the Divide), you’ll be forced to stop and refactor everything, or else end up with a mess of unmaintainable spaghetti code.

This is why you shouldn’t “just use jQuery” for everything. You can think of jQuery like duct tape. It’s amazingly handy for small fixes around the house, but if you keep adding more and more things will start looking ugly.

On the other hand, modern JavaScript frameworks are more like 3D-printing a replacement piece: it takes more time, but the result is a lot cleaner and sturdier.

In other words, mastering the modern JavaScript stack is a bet that no matter where they start, most web apps will probably end up on the right side of the divide sooner or later. So yes, it’s more work, but better safe than sorry.

Week 0: JavaScript Basics

Unless you’ve a pure back-end developer, you probably know some JavaScript. And even if you don’t, JavaScript’s C-like syntax will look somewhat familiar if you’re a PHP or Java developer.

But if JavaScript is a complete mystery to you, don’t despair. There are a lot of free resources out there that will quickly bring you up to speed. For example, a good place to start is Codecademy’s JavaScript lessons.

Week 1: Start With React

Now that you know basic JavaScript syntax, and that you understand why JavaScript apps can appear so complex, let’s talk specifics. Where should you start?

I believe the answer is React.

React is a UI library created and open-sourced by Facebook. In other words, it takes care of that “data to HTML” step (the View Layer).

Now don’t get me wrong: I’m not telling you to pick React because it’s the bestlibrary out there (because that’s highly subjective), but because it’s pretty good.

  • React might not be the most popular library, but it’s pretty popular.
  • React might not be the most lightweight library, but it’s pretty lightweight.
  • React might not be the easiest to learn, but it’s pretty easy to learn.
  • React might not be the most elegant library, but it’s pretty elegant.

In other words, React might not be the best choice in every situation, but I believe it’s the safest. And believe me, “just when you’re starting out” is not the right time to take risks with your technological choices.

React will also introduce you to some useful concepts like components, application state, and stateless functions that will prove useful no matter which framework or libraries you end up using during your career.

Finally, React has a large ecosystem of other packages and libraries that work well with it. And its sheer popularity means you’ll be able to find a lot of help on sites like Stack Overflow.

I personally recommend the React for Beginners course by Wes Bos. It’s how I learned React myself, and it’s just been completely overhauled with the latest React best practices.

Should You “Learn JavaScript Properly” First?

If you’re a very methodical learner, you might want to get a good grasp of the fundamentals of JavaScript before you do anything else.

But for others, this feels like learning to swim by studying human anatomy and fluid dynamics. Sure, they both play a huge role in swimming, but it’s more fun to just jump in the pool!

There’s no right or wrong answer here, it all depends on your learning style. The truth is, most basic React tutorials will probably use only a tiny subset of JavaScript anyway, so it’s perfectly fine to focus on only what you need now and leave the rest for later.

This also applies to the JavaScript ecosystem at large. Don’t worry too much about understanding the ins and outs of things like Webpack or Babel for now. In fact React recently came out with its own little command-line utility that lets you create apps with no build configuration whatsoever.

Week 2: Your First React Project

Let’s assume you’ve just completed a React course. If you’re like me, two things are probably true:

  • You’ve already forgotten half of what you just learned.
  • You can’t wait to put the half you do remember in practice.

I believe the best way to learn a framework or a language is to just use it. And personal projects are the perfect occasion to try out new technologies.

A personal project could be anything from a single page to a complex web app, but I feel like redesigning your own personal site can be a good middle ground. Plus, I know you’ve probably been putting it off for years!

Now I did say earlier that using single-page apps for static content was often overkill, but React actually has a secret weapon: Gatsby, a React static site generator that lets you “cheat” and get all the benefits of React without any of the downsides.

Here’s why Gatsby is a great way to get started with React:

  • A pre-configured Webpack, meaning you get all the benefits without any of the headaches.
  • Automatic routing based on your directory structure.
  • All HTML content is also generated server-side, so you get the best of both worlds.
  • Static content means no server and super-easy hosting on GitHub Pages.

I used Gatsby for the State Of JavaScript site, and not having to worry about routing, build tool configuration, or server-side rendering saved me a ton of time.

Week 3: Mastering ES6

In my own quest to learn React, I soon reached a point where I could get by copy-pasting code samples, but there was still a lot I didn’t understand.

Specifically, I was unfamiliar with all the new features introduced by ES6, such as:

  • Arrow functions
  • Object destructuring
  • Classes
  • The spread operator

If you’re in the same boat, it might be time to take a couple days and learn ES6 properly. If you enjoyed the React for Beginners course, you might want to check out Wes’ excellent ES6 for Everybody videos.

Or if you prefer free resources, check out Nicolas Bevacqua’s book, Practical ES6.

A good exercise for mastering ES6 is going through an older codebase (such as the one you just created in Week 2!) and converting your code to ES6’s shorter, terser syntax whenever possible.

Week 4: Taking On State Management

As this point you should be capable of building a simple React front-end backed by static content.

But real web apps are not static: they need to get their data from somewhere, generally a database of some kind.  Web development services in Hyderabad visit Vivid Designs 

Now you could just send data to your individual components, but that quickly gets messy. For example, what if two components need to display the same piece of data? Or need to talk to each other?

This is where State Management comes in. Instead of storing your state (in other words, your data) bit by bit in each component, you store it in a single global store that then dispatches it to your React components:

In the React world, the most popular state management library is Redux. Redux not only helps centralize your data, but it also enforces some strict protocols for manipulating this data.

You can think of Redux as a bank: you can’t go to your local branch and manually modify your account total (“here, let me just add a couple extra zeroes!”). Instead, you fill out a deposit form, then give it to a bank teller authorized to perform the action.

Similarly, Redux also won’t let you modify your global state directly. Instead, you pass actions to reducers, special functions that perform the operation and return the new, updated state as a result.

The result of all this extra work is a highly standardized and maintainable data flow throughout your app, and access to tools such as the Redux Devtoolsto help you visualize it:

Once again you can stay with our friend Wes and learn Redux with his Redux course, which is actually completely free!

Or, you can check out Redux creator Dan Abramov’s video series on egghead.io, which is free as well.

Bonus Week 5: Building APIs With GraphQL

So far we’ve pretty much only talked about the client, and that’s only half the equation. And even without going into the whole Node ecosystem, it’s important to address one key aspect of any web app: how data gets from the server to the client.

It won’t come as a surprise that this, too, is rapidly changing, with GraphQL(yet another Facebook open-source project) emerging as a serious alternative to the traditional REST APIs.

Whereas a REST API exposes multiple REST routes that each give you access to a predefined dataset (say, /api/posts, /api/comments, etc.), GraphQL exposes a single endpoint that lets the client query for the data it needs.

Think of it as making multiple trips to the butcher shop, bakery, and grocery store, versus giving someone a shopping list and sending them on their way to all three.

This new strategy becomes especially significant when you need to query multiple data sources. Just like with our shopping list example, you can now get data back from all these sources with a single request.

GraphQL has been picking up steam over the past year or so, with many projects (such Gatsby, which we used in Week 2) planning on adopting it.

GraphQL itself is just a protocol, but its best implementation right now is probably the Apollo library, which works well with Redux. There is still a lack of instructional material around GraphQL and Apollo, but hopefully the Apollo documentation can help you get started.

Beyond React & Co

I recommended you start with the React ecosystem because it’s a safe pick, but it’s by no means the only valid front-end stack. If you want to keep exploring, here are two recommendations:


Vue is a relatively new library but it’s growing at record speeds and has already been adopted by major companies, especially in China where it’s being used by the likes of Baidu and Alibaba (think Chinese Google and Chinese Amazon). And it’s also the official front-end layer of PHP framework Laravel.

Compared to React, some of its key selling points are:

  • Officially-maintained routing and state management libraries.
  • Focus on performance.
  • Lower learning curve thanks to using HTML-based templates.
  • Less boilerplate code.

As it stands, the two main things that still give React an edge over Vue are the size of the React ecosystem, and React Native (more on this later). But I wouldn’t be surprised to see Vue catch up soon!


If Vue is the more approachable option, Elm is the more cutting-edge one. Elm is not just a framework, but an entire new language that compiles down to JavaScript.

This brings multiple advantages, such as improved performance, enforced semantic versioning, and no runtime exceptions.

I haven’t tried Elm personally, but it’s been warmly recommended by friends and Elm users generally seem very happy with it (as shown by its 84% satisfaction rating in the State Of JavaScript survey).

Next Steps

By now you should have a pretty good grasp of the entire React front-end stack, and hopefully be reasonably productive with it.

That doesn’t mean you’re done though! This is only the beginning of your journey through the JavaScript ecosystem. Some of the other topics you’ll eventually run into include:

  • JavaScript on the server (Node, Express…)
  • JavaScript testing (Jest, Enzyme…)
  • Build tools (Webpack…)
  • Type systems (TypeScript, Flow…)
  • Dealing with CSS in your JavaScript apps (CSS Modules, Styled Components…)
  • JavaScript for mobile apps (React Native…)
  • JavaScript for desktop apps (Electron…)

I can’t cover all this here but don’t despair! The first step is always the hardest, and guess what: you’ve just taken it by reading this study plan.

And now that you understand how the various pieces of the ecosystem fit together, it’s just a matter of lining up what you want to learn next and knocking down a new technology each month.


GitHub vs. Bitbucket vs. GitLab vs. Coding


Today, repository management services are key components of collaborative software development. They enable software developers to manages changes to the source code and related files, create and maintain multiple versions in one central place. There are numerous benefits of using them, even if you work in a small team or you are a one man army. Using repository management services enables teams to move faster and preserve efficiency as they scale up.

In this article we briefly introduce and compare four popular repository management services GitHub, Bitbucket, GitLab, and Coding by touching on multiple aspects including basic features, relationship to open source, importing repositories, free plans, cloud-hosted plans, and self-hosted plans. The purpose of this article is not to swing opinions, but serve as a starting point for your research when you are looking for the best solution for your project.


GitHub is Git based repository hosting platform which was originally launched in 2008 by Tom Preston-Werner, Chris Wanstrath, and PJ Hyatt. This is the largest repository host with more than 38+ million projects.


Bitbucket was also launched in 2008 by an Australian startup, originally only supporting Mercurial projects. In 2010 Bitbucket was acquired by Atlassian and from 2011 it also started to support Git hosting, which is now its main focus. It integrates smoothly with other services from Atlassian and their main market is large enterprises.


GitLab started as a project by Dmitriy Zaporozhets and Valery Sizov providing an alternative to the available repository management solutions in 2011. In 2012 the site GitLab.com was launched, but the company was only incorporated in 2014.


Coding was founded by Zhang Hai Long (张海龙) in Shenzhen, China in 2014 and received $15 million funding in the same year. Coding is currently used by 300 000 developers and hosts 500 000 projects. Their user base is rapidly growing on the mainland Chinese market and they have already set their eyes on international users.

Basic Features

Each of the four platforms is one big universe on its own when it comes down to features and capabilities. Making a detailed feature comparison is beyond the scope of this post. But if we are only looking at basic features they show a lot of similarities:

  • Pull request
  • Code review
  • Inline editing
  • Issue tracking
  • Markdown support
  • Two factor authentications
  • Advanced permission management
  • Hosted static web pages
  • Feature rich API
  • Fork / Clone Repositories
  • Snippets
  • 3rd party integrations

For more details please visit the feature pages of Bitbucket, GitHub, GitLab, and Coding.

Which one is open source?

From the four repository management services, only GitLab has an open source version. The source code of GitLab Community Edition is available on their website, the Enterprise edition is proprietary.

GitHub, who is famous for open source friendliness and hosts the largest amount (19.4M+) of open source projects is not open source.

Bitbucket is not open source but upon buying the self-hosted version the full source code is provided with product customization options.

Coding is also entirely proprietary and the source code is not available in any form. For Best web design company check Vivid Designs

What is the best place to discover public projects and connect with other developers?

GitHub, GitLab, Bitbucket, and Coding both have public repository discovery functions and apart from GitLab each offers the ability to easily follow other users. Coding even lets you add customized tags to personal profiles, which helps to find and to connect with other users with a particular interest.

Even though GitHub is not open source, it is still the hotbed of open source collaboration. It has by far the largest amount of public and open source projects and also hosts many of the most significant ones.(Docker, npm) With the early adoption of social features and with the free hosting of public projects, it is clearly a social hub for professional developers and everyone else who is interested in software development. What’s more, an exciting active GitHub profile could help you landing a great job. In more and more cases recruiters favor candidates with an active GitHub profile.

Importing Repositories

When you are trying to decide which system to use, the ability to import and use your previous projects is critical. Bitbucket is in this sense stands out from the other three because this is the only one that supports Mercurial repositories.

Coding, GitHub, and Bitbucket supports importing repos based on multiple different VCSs, GitLab on the other hand only supports Git. Git is the most popular VCS, but moving to GitLab could be complicated if you are using Mercurial or SVN repositories at the moment. GitLab’s repository importing feature explicitly geared to help users migrate from other more popular platforms.

GitHub supports:
– The import of Git, SVN, HG, TFS.

GitLab supports: 
-The import of Git.
-Easy import from other services GitHub, Bitbucket, Google Code, Fogbugz.

Coding supports: 
– The import of Git, SVN, HG.

Bitbucket supports:
– The import of Git, CodePlex, Google Code, HG, SourceForge, SVN.

Free Plans

All the 4 providers offer a free plan, but when we are looking at the details they have some significant differences.

GitHub free plan allows you to host an unlimited number of public repositories with the ability to clone, fork and contribute to them. There is no limit on disk usage, however, projects should not exceed 1 GB and individual files 100 MB. If you are looking to host private projects for free you need to look at other providers.

Bitbucket’s Small teams plan let’s 5 members to collaborate on an unlimited number of projects. Repositories here have a 1 GB soft size limit, when you reach this they will notify you by email, but your ability to push to the repository will only be suspended when your repo’s size reaches 2 GB.

GitLab cloud-hosted plan lets an unlimited number of users to collaborate on an unlimited number of public and private projects. They have 10GB space limit per repository, which is definitely a very generous proposition compared to what the other 3 provider offers. Top web development company in Hyderabad visit Vivid Designs 

The free plan from Coding let’s 10 members to collaborate on an unlimited number of public and private repositories, but they impose a 1 GB overall storage limit which feels like a big restriction.

If you are looking for a free cloud-based solution for private projects GitLab’s offer is probably the most appealing.

GitLab Community Edition is the only self-hosted free plan on our list. This is definitely the best option for those who like to have full control over the code base and have the resources to maintain their own servers. The downside here is that it only comes with community support and some more advanced features as code search are not included.

Paid Cloud-Hosted Plans

All the paid cloud-hosted plans offer an unlimited number of private repository storage and email support as well.

GitHub personal account offers essentially the same functionalities as their free account with the ability to host an unlimited number of private repositories. There is no limit on how many users with a personal account can collaborate, but they can’t use organizational features such as team-based access permissions and billing is done independently. GitHub Organisation plan starts at $25 / month for 5 people and each additional user cost $9 / month.

Bitbucket cloud-hosted Growing Team plan start with 10 users / $10 / month and for $100 / month it removes the limit on the number of team members.

Coding has two paid plans the Developer Plan for maximum 20 users and the Advanced plan for 50 users. Each case you and your team can host an unlimited number of repositories with the storage limit 5GB and 10GB respectively. It is worth mentioning that coding has more flexible billing options, competitive prices, and strong support including live chat and phone call. (They might only be available in Chinese though.)

Paid Self-Hosted Plans

GitHub, GitLab, and Bitbucket self-hosted versions provide enhanced features compared to their cloud-hosted counterparts. Each of these providers has created comparison tables to compare the features of the cloud-based and the self-hosted editions:

  • GitHub
  • GitLab
  • Bitbucket

Coding is rather mysterious about their Enterprise edition, they don’t disclose any details of pricing and feature on their website. If you are considering their host their solution behind your firewall, you need to reach out to their team. They assess the client’s needs first and then they provide custom quotes based on the assessment.

GitHub Enterprise plan starts at $2500 / 10 users and it’s billed annually. If you need more than that, which is likely to be the case, then you need to contact their sales team. Apart from your the servers at your own premises, GitHub Enterprise can also be deployed to AWS and Azure.

One of the best thing about Bitbucket Small Teams and Growing Teams that they only need a one-time payment. Paying $10 for Bitbucket Small Teams once for all, definitely makes GitHub look expensive. The Bitbucket Enterprise version has a limit of 2000 users. If you need more than that we suggest that you should check out Bitbucket Data Center.

GitLab Enterprise edition cost $39 / user / year and has no minimum limit on the number of users. It is more expensive than Bitbucket but it is still a wallet-friendly option. Adding some of the extra tools and services can make it quite pricey:

  • Premium support $99 / user / year (min 100 users)
  • GitLab Geo $99 / user / year (no min users)
  • Pivotal Tile $99 / user / year (no min users)
  • File Locking $99 / user / year (no min users)

Integration with flow.ci

GitHub, Bitbucket, GitLab, and Coding work seamlessly together with flow.ci. Connecting your either of your accounts to flow.ci only takes few steps.


We can not announce one service to be ultimately superior to the others. Not only because that would easily start a pub fight but also all of them are powerful and feature rich services. Nevertheless, there are particular scenarios when it is not far fetched to recommend a certain service:

  • If you want an open source solution you should pick GitLab.
  • If you are using other products from Atlassian (eg.: Confluence, Jira.. ), hosting your repositories on Bitbucket definitely make sense.
  • If you are working on an open source project then GitHub is definitely a great choice.
  • At this moment we would only recommend Coding for Chinese speaking teams since only their Web IDE has English UI.

It is likely that one of the four repository hosting services can give you what you need. If it is not the case, then check out Assembla or CloudForge.

flow.ci is a hosted continuous integration and delivery service, designed for teams who need a flexible and scalable solution but prefer not to maintain their own infrastructure. In flow.ci, development pipelines or automation workflows are simply called flows. In a flow, every step is a plugin that can be added by two clicks. You can add as many steps to your flow as you need, and there is no time limit on builds.

Function as Child Components

Merrick Christensen

Classic Ryan, “Rethinking Best Practices” anyone? If you don’t know what the “Function as Child” pattern is, this article is my attempt to:

  1. Teach you what it is.
  2. Convince you of why it is useful.
  3. Get some fetching hearts, or retweets or likes or newsletters or something, I don’t know. I just want to feel appreciated, you know?

What are Function as Child Components?

“Function as Child Component”s are components that receive a function as their child. The pattern is simply implemented and enforced thanks to React’s property types.

class MyComponent extends React.Component { 
  render() {
    return (
        {this.props.children('Scuba Steve')}
MyComponent.propTypes = {
  children: React.PropTypes.func.isRequired,

That is it! By using a Function as Child Component we decouple our parent component and our child component letting the composer decide what & how to apply parameters to the child component. For example:

  {(name) => (

And somebody else, using the same component could decide to apply the name differently, perhaps to an attribute:

  {(name) => (
    <img src=’/scuba-steves-picture.jpg’ alt={name} />

What is really neat here is that My Component, the Function as Child Component can manage state on behalf of components it is composed with, without making demands on how that state is leveraged by its children. Lets move on to a more realistic example.

The Ratio Component

The Ratio Component will use the current device width, listen for resize events and call into its children with a width, height and some information about whether or not it has computed the size yet.

First we start out with a Function as Child Component snippet, this is common across all Function as Child Component’s and it just lets consumers know we are expecting a function as our child, not React nodes.

class Ratio extends React.Component {
  render() {
    return (
Ratio.propTypes = {
 children: React.PropTypes.func.isRequired,

Next lets design our API, we want a ratio provided in terms of X and Y axis which we will then use the current width to compute, lets set up some internal state to manage the width and height, whether or not we have even calculated that yet, along with some prop Types and default Props to be good citizens for people using our component.

class Ratio extends React.Component {
  constructor() {
    this.state = {
      hasComputed: false,
      width: 0,
      height: 0, 
  render() {
    return (
Ratio.propTypes = {
  x: React.PropTypes.number.isRequired,
  y: React.PropTypes.number.isRequired,
  children: React.PropTypes.func.isRequired,
Ratio.defaultProps = {
  x: 3,
  y: 4

Alright so we aren’t doing anything interesting yet, lets add some event listeners and actually calculate the width (accommodating as well for when our ratio changes): For Web designing services check Vivid Designs

class Ratio extends React.Component {
  constructor() {
    this.handleResize = this.handleResize.bind(this);
    this.state = {
      hasComputed: false,
      width: 0,
      height: 0, 
  getComputedDimensions({x, y}) {
    const {width} = this.container.getBoundingClientRect();
return {
      height: width * (y / x), 
  componentWillReceiveProps(next) {
  componentDidMount() {
      hasComputed: true,
    window.addEventListener('resize', this.handleResize, false);
  componentWillUnmount() {
    window.removeEventListener('resize', this.handleResize, false);
  handleResize() {
      hasComputed: false,
    }, () => {
        hasComputed: true,
render() {
    return (
      <div ref={(ref) => this.container = ref}>
        {this.props.children(this.state.width, this.state.height, this.state.hasComputed)}
Ratio.propTypes = {
  x: React.PropTypes.number.isRequired,
  y: React.PropTypes.number.isRequired,
  children: React.PropTypes.func.isRequired,
Ratio.defaultProps = {
  x: 3,
  y: 4

Alright, so I did a lot there. We added some event listeners to listen for resize events as well as actually computing the width and height using the provided ratio. Neat, so we’ve got a width and height in our internal state, how can we share it with other components?

This is one of those things that is hard to understand because it is so simple that when you see it you think, “That can’t be all there is to it.” but this is all there is to it.

Children is literally just a JavaScript function.

That means in order to pass the calculated width and height down we just provide them as parameters:

render() {
    return (
      <div ref='container'>
        {this.props.children(this.state.width, this.state.height, this.state.hasComputed)}

Now anyone can use the ratio component to provide a full width and properly computed height in whatever way they would like! For example, someone could use the Ratio component for setting the ratio on an img:

  {(width, height, hasComputed) => (
      ? <img src='/scuba-steve-image.png' width={width} height={height} /> 
      : null

Meanwhile, in another file, someone has decided to use it for setting CSS properties.

  {(width, height, hasComputed) => (
    <div style={{width, height}}>Hello world!</div>

And in another app, someone is using to conditionally render different children based on computed height:

  {(width, height, hasComputed) => (
    hasComputed && height > TOO_TALL
      ? <TallThing />
      : <NotSoTallThing />


  1. The developer composing the components owns how these properties are passed around and used.
  2. The author of the Function as Child Component doesn’t enforce how its values are leveraged allowing for very flexible use.
  3. Consumers don’t need to create another component to decide how to apply properties passed in from a “Higher Order Component”. Higher Order Components typically enforce property names on the components they are composed with. To work around this many providers of “Higher Order Components” provide a selector function which allows consumers to choose your property names (think redux-connects select function). This isn’t a problem with Function as Child Components.
  4. Doesn’t pollute “props” namespace, this allows you to use a “Ratio” component and a “Pinch to Zoom” component together regardless that they are both calculating width. Higher Order Components carry an implicit contract they impose on the components they are composed with, unfortunately this can mean colliding prop names being unable to compose Higher Order Components with other ones.
  5. Higher Order Components create a layer of indirection in your development tools and components themselves, for example setting constants on a Higher Order Component will be unaccessible once wrapped in a Higher Order Component. For example:  Web development company in Hyderabad visit Vivid Designs 
MyComponent.SomeContant = ‘SCUBA’;

Then wrapped by a Higher Order Component,

export default connect(...., MyComponent);

RIP your constant. It is no longer accessible without the Higher Order Component providing a function to access the underlying component class. Sad.


Most the time when you think “I need a Higher Order Component for this shared functionality!” I hope I have convinced you that a Function as Child Component is a better alternative for abstracting your UI concerns, in my experience it nearly always is, with the exception that your child component is truly coupled to the Higher Order Component it is composed with.

An Unfortunate Truth About Higher Order Components

As an ancillary point, I believe that Higher Order Components are improperly named though it is probably to late to try and change their name. A higher order function is a function that does at least one of the following:

  1. Takes n functions as arguments.
  2. Returns a function as a result.

Indeed Higher Order Components do something similar to this, namely take a Component as and argument and return a Component but I think it is easier to think of a Higher Order Component as a factory function, it is a function that dynamically creates a component to allow for runtime composition of your components. However, they are unaware of your React state and props at composition time!

Function as Child Components allow for similar composition of your components with the benefit of having access to state, props and context when making composition decisions. Since Function as Child Components:

  1. Take a function as an argument.
  2. Render the result of said function.

I can’t help but feel they should have gotten the title “Higher Order Components” since it is a lot like higher order functions only using the component composition technique instead of functional composition. Oh well, for now we will keep calling them “Function as Child Components” which is just wordy and gross sounding.


  1. Pinch to Zoom — Function as Child Component
  2. react-motion — This project introduced me to this concept after being a long time Higher Order Component convert.

The Ugly

Since Function as Child Components give you this power at render time, you typically can’t optimize them using should Component Update without hindering your composition ability

However, even Dan Abramov, the Benevolent Leader Of Whatever We Are Going To Be Doing Next, has acknowledged the grey area:

I have personally not found it a hinderance to our application’s performance since Function as Child Components are passthrough components to be composed with children it doesn’t know about anyhow. Higher Order Components find themselves in a similar situation as they are often designed to take unknown properties as well and therefore need to do “as good as we can or pass through” optimizations such as shallow equals which you can find in react-redux.

One does not simply learn to code

Quincy Larson

One does not simply learn to code. Because coding isn’t easy. Coding is hard. Everyone knows that. Anyone who’s scoured a stack trace — or git detached their head — can tell you that.

Unfortunately, there are a lot of marketers out there trying to cash in on the notion that “coding is easy!” Or that it will be, if you use their product.

When someone tells you that coding is easy, they are doing you a huge disservice. This can really only play out in one of three ways:

Scenario 1

Person 1: “I tried to learn to code once. I had a hard time. Life got in the way, and I am no longer trying to learn to code.”

Marketer: “Coding is easy!”

Person 1: “What? Oh. Maybe coding is easy after all. Maybe I’m just dumb.”

Scenario 2

Person 2: “I want to learn to code, but it sounds hard.”

Marketer: “Coding is easy!”

Person 2: “Really?”

Marketer: “Yes. Buy my course/program/e-book and you’ll be an elite coder in less than a month.”

Person 2:

Shut up and take my money!

Person 2, one month later: “I thought coding was supposed to be easy. Maybe I’m just dumb.”

Scenario 3

Person 3: I have no interest in ever learning to code. I’m a successful manager. If I ever need something coded, I’ll just pay someone to code it for me.

Marketer: Coding is easy!

Person 3: Oh, OK. Figures. In that case, I guess I won’t pay those code monkeys very much, or hold their work in very high regard.

Brain surgery is easy

Saying “Coding is easy!” is like saying “Brain surgery is easy!” Or saying “Writing novels is easy!” For Best Website deign services check Vivid Designs 

A brain surgeon at a dinner party says to novelist Margret Atwood: “I’ve always wanted to write. When I retire and have the time, I’m going to be a writer.”

Margret Atwood replies: “What a coincidence, because when I retire, I’m going to be a brain surgeon.”

And yet, marketers continue to say: “Coding is easy!”, “Coding isn’t that hard!”, or my personal favorite, “Coding is easy! It’s the <something that makes coding hard> that’s hard!”

And all that these marketers achieve in saying this is to make people feel dumb — sometimes taking their money in the process.

The curse of knowledge

Unfortunately, it’s not just marketers who say coding is easy. I meet experienced developers all the time who also say “coding is easy!”

Why would someone who’s gone through the thousands of hours it takes to get good at coding say that coding is easy? Because they’re suffering from a cognitive bias called the curse of knowledge. They cannot remember what it was like to not know how to code. And even if they can, they’ve probably long forgotten how hard coding was for them at first.

The curse of knowledge prevents many experienced developers from being able to empathize with beginners. And nowhere is this lack of empathy more apparent than everyone’s favorite Google result: the coding tutorial.

How many times have you actually been able to finish a random tutorial you found through Google, without getting derailed by some cryptic error or ambiguity?

And the worst thing about this process is when tutorial authors unconsciously pepper their instructions with words like “obviously” “easily” and most mocking of all: “simply.”

Nothing is more frustrating than being 30 minutes into a tutorial and getting stuck on a step that says “simply integrate with Salesforce’s API,” or “simply deploy to AWS.”

And when this happens, the voice of a thousand marketers echoes through your head: “Coding is easy!”

You’ll remember those experienced developers you met a few weeks ago who tried their best to encourage you by saying: “Coding is easy!”

You’ll even have flashbacks of all those bad Hollywood hacking scenes where they make coding look so easy.

Before you know it, you’ll suddenly hear the sound of your own voice screaming, feel your body rising to its feet and (╯°□°)╯︵ ┻━┻

But it’s OK. Take a deep breath. Coding isn’t easy. Coding is hard. Everyone knows that.

Coding in real life VS coding in the movies

Still, you’ll yearn for those l33+ h@x0r skills. You’ll feel impelled to vanquish bugs with nothing but your wits — and a gratuitous number of green-on-black monitors.

So let’s chase that dragon. Let’s be that elite Hollywood programmer. If only for a moment, let’s feel what that’s like. Web designing services in Hyderabad visit Vivid Designs

Here we go:

Step 1: Turn out the lights, pop your collar, put on some aviator sunglasses

Step 2: Guzzle an energy drink, crush the can, and chuck it over your shoulder

Step 3: Go here and bang on your keyboard as fast as humanly possible

Power fantasy fulfilled.

Do you feel better? Are you laughing at the absurdity of our collective construct of software development?

Now that we’ve gotten that out of our system, let’s talk about the most insidious word in the English language.

Nothing is ever simple

There’s a good chance that if you encounter a word like “simply” in a tutorial, that tutorial will assume a lot about your prior knowledge.

Maybe the author assumes that you’ve previously coded something similar and are just using their tutorial as a reference. Maybe the author wrote the tutorial with themselves in mind as their target audience.

Either way, there’s a good chance that the tutorial will not be designed for someone at your exact level of coding skills.

Hence the “rule of simply”:

Don’t use the word “simply” in your tutorials, and don’t use tutorials that use the word “simply.”

Learn it. Know it. Live it.

Unfortunately, twenty minutes into a desperate Googling session, you are unlikely to remember that you should search the tutorial page to see whether its author presumptively uses words like “simply.”

Well, we’ve got you covered. Albert Meija has created a Chrome extension that will detect the word “simply” in a tutorial and will pop up a notice that the tutorial isn’t designed for beginners.

This Chrome Extension serves as a proverbial canary in the coal mine, notifying you of the presence of the word “simply” — and thus likely assumptions about your prior knowledge — before you get too far into the tutorial.

Albert built this chrome extension in just a few hours, in response to a challenge I tweeted out. Here are some of the other entries from Free Code Camp campers, whose extensions do similar things:

We could certainly take these chrome extensions further. Maybe use Natural Language Processing to produce a more accurate assessment of the relative difficulty of a given tutorial, or its “presumptive index.”

But in the meantime, this simple extension may steer you clear of those ship-sinking “simply” icebergs out there in the chilly ocean that is learning to code.

Until we meet again — stay strong and don’t believe the hype. Learning to code is hard. Tune out the noise, stick with it, and profit.

Cracking the front-end interview

Technical front-end interviews are difficult. That’s a fact. Not only do you need to have a solid grasp of computer science fundamentals, but also an understanding of things like web performance, build systems, and CSS layout engines.

While there are resources out there, I’ve found that there are only a few complete guides for helping you prepare for a front-end interview. So I decided to write a topic by topic outline that will hopefully help you ace your next interview.

Before the interview

So before your interview, ask your recruiter for the format of the interview. Some interviews might revolve around a whiteboard while others might use an online text editor like CoderPad. It’s important to know so you can practice in the environment that your interview is going to take place in. For Best web design company check Vivid Designs 

Also, ask your recruiter for tips on what topics to focus on when preparing. The reason behind this is because in addition to front-end specific question, some companies will ask you traditional computer science questions about topics like searching and sorting algorithms.

Front-end concepts

HTML and CSS, Javascript, and Javascript design patterns are the key concepts that you will be tested on during an interview. Go through the list and make sure you are comfortable with each topic.

HTML and CSS is like the bread and butter of front-end development. During interviews, you will most likely be asked questions about the nuances of HTML and CSS. Also, be prepared to be asked to code up a layout based on a mockup.

Just in case you need an HTML and CSS refresher, here are a few basic concepts to look over.

  • CSS animations
  • CSS sprites
  • Pseudo classes
  • Grid systems
  • Semantic markup

In addition to these concepts, know about CSS preprocessors like SASS or LESS and their benefits. Also be familiar with CSS naming conventions like BEM and OOCSS.

Another important point is that interviewers look for candidates who champion CSS best practices. As a good reference, this guide written by a front-end at Medium provides insight into how Medium iterated to their current CSS architecture.

I mentioned earlier that some interviewers will ask you to recreate layouts in HTML and CSS. Practice doing so in a playground like CodePen. Check out Dribbble since it has lots of simple yet nice designs that would be fun to recreate.

Finally, as front-ends, we are so used to making changes in our editor and then verifying the change in our browser. Often times during interviews, you won’t have this luxury. When you’re preparing for your interview, try code most of your layout without looking at the result till the end.

If HTML and CSS are the bread and butter of front-end development, then Javascript is the knife. Companies will spend a good amount of time during your interview testing your knowledge of Javascript. A lot of the questions will revolve around the following concepts.

  • Prototypal inheritance
  • Scoping
  • Closures
  • The event loop
  • Event bubbling
  • Apply, call, and bind
  • Callbacks and promises
  • Variable and function hoisting
  • Currying

When given a Javascript question, figure out which of these concepts you’re being tested on and it’ll be much easier to figure out the right solution. If you feel confident of your Javascript prowess, test your knowledge here, here, and here.

Design patterns in Javascript provide you with repeatable solutions to common problems. These are a few of the design patterns that are important to know.

  • Decorator
  • Factory
  • Singleton
  • Revealing module
  • Facade
  • Observer

Asides from Javascript design patterns, it’s good to be familiar with Javascript frameworks. This does not mean that you have to go learn another framework before your interview. Instead, know when and why front-end teams use frameworks. Also, if you’re interviewing for something like a React + Flux or an Angular position, review some of the documentation for the architecture of the framework beforehand. For Web designing services in Hyderabad visit Vivid Designs 

Computer science concepts

Some companies hire software engineers before front-end developers. What this means is that these companies expect you to be well grounded in topics like good software design principles, scalable code architecture, and testing.

If your recruiter suggests you review your knowledge of data structures and algorithms, this section is for you. Otherwise, feel free to skip this section. If you don’t have a computer science background, that’s okay. Most of these concepts are pretty straightforward to learn.

These are the basic data structures that I would suggest knowing off the top of your head. Don’t just read about them, take the time to implement them in Javascript as well. If you’re not familiar with unit testing, test your data structure with a library like Mocha to learn.

  • Linked lists
  • Hashtables
  • Stacks and queues
  • Trees (binary trees and heaps)
  • Graphs

Note: For graphs, also know how to implement depth-first and breadth-first search traversals.

For implementations of these data structures, you can take a look at SanFoundry. All their examples are in Java but re-implementing them in Javascript is pretty easy.

Once you feel confident about data structures, you can move onto sorting. Go through the list, implement them in Javascript, and then make note of their time and space complexity.

  • Binary search
  • Bubble sort
  • Insertion sort
  • Merge sort
  • Quick sort
  • Selection sort

After reviewing data structures and algorithms, test your knowledge with Leetcode and these technical Javascript questions.

Wrapping it up

I know it’s a lot of material to take in, especially if you’re new to front-end development. Start preparing for your interview ahead of time, so you can move at a comfortable pace.

Also, remember that interviews are not a measure of your worth as a programmer. Some people are good at interviews, other are not. Sometimes you click with your interviewer, other times you don’t.

If you have any questions, feel free to leave a note or Tweet out to me. I would also love to know how your interview experience went. Good luck!

P.S. If you liked this article, it would mean a lot if you hit the recommend button or share with friends.



When should I use TypeScript?

This article is now available in Japanese and Chinese.

Last summer we had to convert a huge code base (18,000+ lines of code) from JavaScript to TypeScript. I learned a lot about the strengths and weaknesses of each, and when it makes sense to use one over the other.

When it makes sense to use TypeScript When you have a large codebase When your codebase is huge, and more than one person works on the project, a type system can help you avoid a lot of common errors. This is especially true for single-page applications.

Any time one developer could introduce breaking changes, it’s generally good to have some sort of safety mechanism.

The TypeScript transpiler reveals the most obvious mistakes — though it won’t magically eliminate the need for debugging.

If your codebase isn’t all that big, it probably doesn’t make sense to make it larger by adding type annotations. I’ve converted 180+ files from JavaScript to TypeScript, and in most cases it added roughly 30% to the total code size.

When your team’s developers are already accustom to statically-typed languages If you or the majority of the team come from a strongly typed language like C# or Java, and don’t want to go all-in on JavaScript, TypeScript is a good alternative. For Best web design company check Vivid Designs

Even though I recommend learning Javascript thoroughly, there’s nothing preventing you from using TypeScript without knowing JavaScript. In fact, TypeScript was created by the same guy who made C#, so the syntaxes are similar.

In my company, we had a team of C# developers who were coding a sophisticated desktop application in C# and WPF (which is basically a front end development tool for the desktop world). They were then asked to join a web project as full stack developers. So in short order, they were able to learn TypeScript for the front end, then leverage their C# knowledge for the back end.

TypeScript can serve as a replacement for Babel The old Microsoft used to take standard tools — Java for example — and add proprietary non-standard features to them — in this case resulting in J++. Then they would try to force developers to choose between the two.

TypeScript is exactly the same approach — this time for JavaScript. By the way, this isn’t Microsoft’s first fork of JavaScript. In 1996, they forked JavaScript to create JScript.

Though it’s is a less-common use case, it’s technically possible to transpile ES6 code into ES5 using the TypeScript transpiler. This is possible because ES6 is essentially a subset of TypeScript, and the TypeScript transpiler generates ES5 code.

Typescript’s transpiler generates pretty readable Javascript (EcmaScript 5) code as output. That was one of the reasons why the Angular 2 team chose TypeScript over Google’s own Dart language.

Also, TypeScript has some cool features that are not in ES6, like enums and the ability to initialize member variables in a constructor. I’m not a big fan of inheritance, but I find it useful to have the public, private, protected, and abstract keywords in classes. TypeScript has them and ES6 doesn’t.

Our C# developers thought it was super amazing to be able to write a lambda function as the body of a method — which eliminated the headaches associated with the this keyword.

When a library or framework recommends TypeScript If you are using Angular 2 or another library that recommends TypeScript, go for it. Take a look at what these developers have to say after using Angular 2 for six months.

Just know that — even though TypeScript can use all JavaScript libraries out of the box — if you want good syntax errors, you’ll need to add the type definitions for those libraries externally. Fortunately the nice guys at DefinitelyTyped have built a community-driven repo with tooling for doing just that. But this is still one extra step when you’re setting up your project

(On a side note: for all you JSX fans, check out TSX.)

When you really feel the need for speed This may come as a shock to you, but the TypeScript code can in some situations perform better than JavaScript. Let me explain.

In our JavaScript code, we had a lot of type checks. It was a MedTech app, so even a small error could be literally fatal if it wasn’t dealt with properly. So a lot of functions had statements like:

if(typeof name !== ‘string) throw ‘Name should be string’ With TypeScript, we could eliminate a lot of these type checks all together.

This especially showed its effect in parts of the code where we previously had a performance bottleneck, because we were able to skip a lot of unnecessary runtime type checking.

So when are you better off without Typescript? When you can’t afford an extra transpilation tax There are no plans to support TypeScript natively in the browsers. Chrome did some experiment, but later cancelled support. I suspect this has something to do with unnecessary runtime overhead.

If someone wants training wheels, they can install them. But bikes shouldn’t come with permanent training wheels. This means that you will always have to transpile your TypeScript code before running it in a browser.

For standard ES6, it’s a whole different story. When ES6 is supported by most browsers, the current ES6 to ES5 transpilation will become unnecessary (update: yes indeed!).

ES6 is the biggest change to the JavaScript language, and I believe most programmers will just settle with it. But those brave few who want to try the next version of JavaScript’s experimental features, or the features not yet implemented on all browsers — they will need to transpile anyway.

Without transpilation, you just modify the file and refresh your browser. That’s it. No watching, transpiling on demand, or build system are necessary.

If you choose TypeScript, you will end up doing some extra bookkeeping for the type definitions for your Javascript libraries and frameworks (by using DefinitelyTyped or writing your own type annotations). That’s something you wouldn’t need to do for a pure JavaScript projects. Top web development company in Hyderabad visit Vivid Designs

When you want to avoid weird debugging edge cases Sourcemaps make it easier to debug Typescript, but the status quo is not perfect. There are really annoying and confusing edge cases.

Also, there are some problems debugging the “this” keyword and properties attached to it (hint: “_this” works in most cases). That is because Sourcemaps currently don’t have a good support for variables — though this may change in the future.

When you want to avoid potential performance penalties In our project, we had 9,000+ lines of good old ES5 JavaScript that delivered pure horse power to a 3D WebGL canvas. We kept it that way.

The TypeScript transpiler (just like Babel) has features that require generating extra code (inheritance, enum, generics, async/await, etc). No matter how good your transpiler is, it can’t surpass the optimizations of a good programmer. So we decided to keep it in plain ES5 for ease of debug and deployment (no transpilation whatsoever).

That being said, the performance penalty is probably negligible compared to benefits of a type system and more modern syntax for most projects. But there are cases where milliseconds and even microseconds matter, and in those cases transpilation of any kind is not recommended (even with Babel, CoffeeScript, Dart, etc.).

Note that Typescript doesn’t add any extra code for runtime type checking. All the type checking happens at transpile time and the type annotations are removed from the generated Javascript code.

When you want to maximize your team’s agility It’s quicker to set up something in JavaScript. The lack of a type system makes for agility and ease of changing stuff. It also makes it easier to break things, so make sure you know what you’re doing.

Javascript is more flexible. Remember one of the main use cases for a type system is to make it hard to break stuff. If Typescript is Windows, Javascript is Linux.

In JavaScript Land, you don’t get the training wheels of a type system, and the computer assumes you know what you’re doing, but allows you to ride much faster and maneuver easier.

This is particularly important to note if you’re still in the prototyping phase. If so, don’t waste your time with TypeScript. JavaScript is so much more flexible.

Remember that TypeScript is a superset of JavaScript. This means that you can easily convert JavaScript to TypeScript later if you need to.

My preference on JavaScript VS TypeScript There is no one best language overall. But for each individual project, there is probably one objectively best language and library and framework and database and operating system and… you get the picture.

For our project it made sense to use TypeScript. I tried to refactor some of my hobby projects in TypeScript but it sucked. I personally like 4 things about TypeScript:

1 It’s fully compatible with ES6. It is really nice seeing Microsoft playing fair with the other browsers. Our ecosystem can benefit from a strong rival to Google, Mozilla, and Apple. Microsoft is spending serious energy on it — such as writing Visual Studio Code from scratch using TypeScript on Google Chrome, of all platforms.

2 The type system is optional. Coming from a C and Java background, I found the lack of type system in JavaScript liberating. But I hated losing time when I encountered stupid bugs during runtime. TypeScript allows me to avoid many common bugs so I can focus my time on fixing the real tricky ones. It’s a good balance. I like it. It’s my taste. I use types whenever I can because it gives me peace of mind. But that’s me. If I use TypeScript, I don’t want to limit myself to its ES6 features.

3 The transpiler output is very readable. I am not a fan of Sourcemaps, so I do most of my debugging on the generated JavaScript. It’s absolutely awesome. I can totally understand why Angular 2 chose TypeScript over Dart.

4 TypeScript’s tooling is fantastic. WebStorm is very smart when dealing with JavaScript (some may argue it’s the smartest JS IDE). But TypeScript pushes the limits to a whole new level. The autocompletion and refactoring features in VSCode work much more accurately, and it’s not because the IDE is super smart. That’s all thanks to TypeScript.

Typescript is not the answer for everything. You can still write terrible code in it.

TypeScript haters are gonna hate, either because of fear of change or because they know somebody who knows somebody who is afraid of it. Life goes on and TypeScript introduces new features to its community anyway.

But like React, TypeScript is one of those influential technologies that is pushing the boundaries of our web development.

Whether you use TypeScript or not, it doesn’t hurt to try it out in order to develop your own opinions on it. It has a learning curve, but if you already know JavaScript, it will be a smooth one.

Here is an online realtime TS transpiler with some examples that let you compare TypeScript code with its equivalent JavaScript code.

Here is a quick tutorial, and a very nice guide, but I’m more a language-reference kinda guy. If you like video, here’s a course from Udemy.

John Papa has a a short article about ES5 and TypeScript.

There’s an interesting study that shows all things equal, a type system reduces bugs by 15%.

Oh, and if you feel like going on a side mission, read why programming is the best job ever.


Jaguar XE Facelift Test Drive & Transmission

Jaguar XE Overview

The Jaguar XE is the British marque’s first full-bodied attempt at taking on the big German three in the compact luxury sedan game; a game that’s currently being dominated by the Mercedes-Benz C-Class, the Audi A4 and the BMW 3 Series. Designed by Ian Callum and underpinned by an all-new aluminium intensive modular platform, the XE is positioned as the most driver focused car in this class by Jaguar. And so the car on test here is a 200bhp plus, petrol version of the sedan. How does it do? We find out. For information on contact details of Jaguar car dealers in New Delhi

Check for Jaguar XE Price in Ahmedabad at CarzPrice

Jaguar XE Exterior & Look

The Jaguar XE, in the released publicity material and spy shots, looks exactly like the larger XF and the flagship XJ. This is a common practice among all the manufacturers partly due to economies of scale and partly due to the fact that it is easy for them to adapt a successful design across all their models to retain familiarity of product.

The Jaguar XE will get a smaller version of the XF’s massive chrome mesh grille complete with the leaping cat. Standard features are expected to be projector headlights, LED daytime lights and projector fog lamps. We even expect that the bumper will remain the same but with a higher ground clearance.

The side profile is also similar to that of the XF in terms of roof line, flared wheels arches and the rake angle of the roof line both in the front and back. However, while the boot will have similar design elements as the XF and XJ-like tail lamp cluster and chrome strips, it appears to be far smaller (in relation to the larger cars). The rear bumper is expected to be a little sportier and will be complemented by dual exhausts.

Jaguar XE Interior & Space

The five-seat Jaguar XE has standard power-adjustable front seats and leatherette upholstery. Higher trims add leather upholstery, heated and ventilated front seats, heated rear seats, and front sport seats with added side bolsterinThe front seats are comfortable enough to keep the driver and front passenger content, even on long trips. The side bolsters aren’t particularly supportive, however, so it’s possible you may slide around a bit while taking corners. You can get optional sport seats with more side bolstering to better hold you in place. The back seats have enough room to accommodate two adults for short trips, but the limited head- and legroom will make tall adults feel cramped. Buy the Audi A4 or the larger Jaguar XF for more back-seat room.

The XE’s cabin doesn’t quite match the level of quality most buyers expect from a Jaguar. Where most German competitors have top-notch materials, the XE has a mixture of hard plastics and nicer materials. The XE’s cabin feels more competitive with a much lower-priced affordable sedan than a luxury model.The XE has 15.9 cubic feet of trunk space, which is above average for the class and competitive with the cargo capacities of some midsize sedans. (The Audi A4 and BMW 3 Series only have 13 cubic feet each.) Unfortunately, it’s hard to utilize all that space. The opening isn’t very large, and the trunk itself is fairly narrow, so hauling wide items may be difficult.

The XE is available with two different infotainment systems: a standard 8-inch model and another with a 10.2-inch screen. They both have their own strengths and weaknesses. With the more basic, standard system, you should have no trouble navigating the menus or finding the digital buttons you need. Plus, there are physical controls for some commonly used features. The 8-inch system can be slow to respond to inputs, however, and it doesn’t have as many high-tech features as the larger system.The 10.2-inch screen has sharper graphics than the smaller screen, and it’s faster too. It can also recognize smartphonelike gestures, including pinching and swiping. But the optional system absorbs most of the car’s physical controls, which means you’ll have to sort through more menus with more buttons to access the systems you want.

Jaguar XE Engine & Transmission

Now that Jaguar has released information on U.S. XE models, we now know what engines will be available in the U.S. market. The XE 25t comes with a turbocharged, 2.0-liter, four-cylinder – already seen in other Jaguar Land Rover vehicles — that puts out 240 horsepower 251 pound-feet of torque. For those diesel fans, the XE 20d delivers with a 180 horsepower, 2.0-liter diesel engine that also pushes 318 pound-feet of torque. The range topping model – the XE 35t – comes with a 3.0-liter, supercharged, V-6 that puts out a respectable 340 horsepower and 332 pound-feet of torque. With that kind of performance, zero to 60 mph takes just 5.1 seconds and top speed is limited 120 mph.

All three engines are mated to a ZF eight-speed automatic transmission, but the XE35t AWD is mated to the beefier 8HP70 transmission, while the RWD variant of the XE 35t, the XE20d and the XE 25t are mated to the 8HP45 transmission.

We’ve all known that AWD was coming to the new XE, but now we have confirmation of what XE models will be available with all-wheel drive. It won’t even be an option on the base XE 25t, but it will be available on the XE 20d and the V-6 powered XE 35t. Like the new XF and F-Pace, the AWD system uses a multi-plate wet clutch transfer case to transfer power to the front propshaft. When needed, the system can switch from full, RWD to AWD in just 165 milliseconds. This on-demand system allows for the steering to remain uncorrupted during normal driving maneuvers.

You may have noticed that there is no V-8 engine option, but give it time. Jaguar won’t let BMW, Audi and Mercedes have all the fun in the compact super-sedan range. Expect the same 5.0-liter supercharged V-8 from the other Jaguar models to find its way into a Jaguar XE R model in the next few years

Jaguar XE Ride & Handling

The ride of the XE is smooth. It has been tuned for better handling, but for India it has tweaked for better ride also. Drive on broken tarmac or even at high speeds. It irons out most of the road shocks for front and rear passengers making it extremely comfortable for the occupants. The handling of the XE is just fantastic. What makes it even better is the steering feedback. The steering wheel weighs up as speed increases. Most of the sedans in this segment now have electronic steering wheel that is extremely light and kills the joy for those who enjoy driving

Jaguar XE Safety & Braking

Standard safety features on the 2017 XE include stability and traction control, front-seat side and side curtain airbags, and hazard lights that automatically activate under heavy braking. A rearview camera is standard on the Premium trim level and above, while the R-Sport further comes with drowsy driver monitoring, blind-spot monitoring, rear cross-traffic alert, front and rear parking sensors, lane departure warning and intervention, forward collision warning, and forward collision mitigation with automatic emergency braking.

The R-Sport trim’s standard front and rear parking sensors and blind-spot monitoring with rear cross-traffic alert can be added to the Premium or Prestige trim via a Vision package (which also adds the adaptive xenon headlights with automatic high beams). As noted above, there’s also a Driver Assistance package (R-Sport) with additional safety technologies.

Every XE comes with InControl Protect (including SOS emergency calling, Jaguar roadside assistance and stolen vehicle location) and InControl Remote (a smartphone app with vehicle status reports, remote locking and unlocking, and other remote features).

Jaguar XE Price

Jaguar Xe Ex-Showroom Price in Chennai ranges from 35,83,551/- (XE Pure) to 44,70,194/- (XE Portfolio Diesel). Get best offers for Jaguar Xe from Jaguar Dealers in Chennai. Check the price of Jagar XE in Chennai

Jaguar XE Bottomline

he XE retains the Jaguar DNA be it for looks and styling, interior, power and agility. The only knick in the armour is no option for diesel engines as majority of the luxury car sales in India are for oil burner. Leaving that, we loved the XE. With this brand, you don’t just move away from the German badge but you even procure a fresh product that looks a lot more expensive than its price tag.

Honda WR V Hatchback Overview

Honda WR V Overview

With cross-hatches, car makers have kept the formula simple – take their existing hatches, inject some testosterone with thick slide cladding, roof rails, larger wheels and voila! We have an all-new model. The i20 Active, the Etios Cross and the Cross Polo, all seem to toe this line of thought (except the Fiat Urban Cross – but it hardly sells!).With the new WR-V, Honda has made an honest effort to create a Jazz-based crossover that stands out from its donor car. Not just in terms of its SUV-inspired looks, which gives it a different persona, especially when viewed from the front and rear. But also in the way it has gone about tweaking the suspension, raising ground clearance and adding a few more features to differentiate it from the Jazz. For information on contact details of.  Honda car dealers in Mumbai

View Price & Offers on Honda WR V at CarzPrice

Honda WR V Design & Look

Unlike some other Cross hatchbacks of its segment, the Honda WR-V gets some significant updates which has helped it get an entirely new identity. Towards the front, the WR-V features a raised bonnet while the thick chrome grille somehow reminds us of the new City. Besides the revised hood and grille the headlamp cluster too has been redesigned as well and also gets integrated LED daytime running lamps. To make the Crossover slightly beefier the WRV also features a sculpted bumper which also houses round shaped fog lamps. There are also silver finished scuff plates. Just like the front profiles the side profile too features larger 16-inch wheels wrapped with 195/60 profile tyres.Just like the front and side profile the rear profile too has been heavily modified as well as it gets different appearing L-shaped taillamps. The rear bumper too has been amended as well along with new bumpers and slightly modified tailgate.

Honda WR V Cabin & Space

There are less significant changes in Honda WR-V in terms of interiors, over the Jazz that it is based on. Interior is themed in black plastic and black fabric with a few dashes of grey and silver in the corners and trims.Seats are well bolstered around the thighs and back and feel much more supportive for long drives this car is aiming to be used for. There is a central armrest for front row passengers with an openable cubby space, which can easily house a phone and sunglasses.

Rear seats however are a surprise. They are flat and fixed and also have integrated headrests, which aren’t helpful for people who are about 6 feet tall. Rear seats are less supportive but cushioning is pretty soft. Leg room perhaps is the ultimate selling point for WR-V. With a standard driving position in the front seat, there’s space at the rear to stretch your legs or even accommodate a camping bag between the knees and front seat base.

The infotainment system is a new upgraded Digipad recently seen in the all new Honda City. The infotainment system operates on new gen Navigation software, Apple Carplay and Android Auto. The touch screen has noticeable lag and it takes patience to get used to it on the move. Honda’s party trick in the WR-V is the installation of a one touch sunroof in the top end trim to add to overall opulence of the otherwise dark cabin.The top end diesel variant gets cruise control to adds to the convenience of long highway expeditions. 363 litres of boot space without the rear seats folded down is sufficient to carry large suitcases and an ice box for the weekend.

Honda WR V Engine & Transmission

As expected, the WR-V gets the same engines as the Jazz. That means a SOHC 1.2-litre i-VTEC petrol that produces 90PS at 6,000rpm and 110Nm at 4,800rpm as well as a DOHC 1.5-litre I-DTEC turbo-diesel that puts out 100PS at 3,600rpm and 200Nm at 1,750rpm. The diesel gets a 6-speed manual and the petrol gets a 5-speed manual – however, there is no CVT option like in the Jazz.The diesel engine has got good low-end grunt and with a responsive throttle, it will happily trudge along at 25kmph in third gear. The engine is quite free-revving and the linear power delivery makes the car quite enjoyable, if not exciting, to drive around. The gearbox is typically Honda with a precise ‘click-click’ when you shift gears, while the light and progressive clutch is nice to use in stop-and-go traffic.

Additionally, the 6-speed makes the WR-V a comfortable and effortless highway cruiser. While Honda didn’t give us any figures, they are claiming best-in-class acceleration figures. They are also claiming that the WR-V diesel will offer segment-leading efficiency with a figure of 25.5kmpl. This is 1.8kmpl less than what they claim for the Jazz. Apart from the extra 50kg that the WR-V carries, this could also be down to the gearing which, Honda says, has been optimised for better acceleration. But we’ll have to wait for the road test to get real-world figures.What is obvious is that the engine is still as loud as it has always been. NVH levels are quite poor in the cabin and that’s personally quite off-putting.

On the contrary, the 1.2-litre petrol engine is super refined and creamy. It’s very quiet till around 4,000rpm at which point the sound turns to a nice raspy note which gets louder as you get to the redline. That said, the sound is the only exciting thing about it. The engine feels annoyingly underpowered and you really have to rev the nuts off of it for some decent acceleration and that can get quite annoying especially during overtakes. This, despite Honda saying that they reworked the gearing for better acceleration. That said, it shouldn’t be too much of a problem within the city. The precise gearbox and the light clutch only make the experience that much nicer in slow-moving traffic. Honda is claiming that the petrol WR-V will return an overall average of 17.5kmpl which is quite respectable.

Honda WR V Driving Dynamics

The WR-V rides on a slightly higher suspension compared to the Jazz, but this has not had any adverse effect on its handling which inspires confidence at high speeds. Body roll too is fairly contained. With its larger 16-inch wheels that ride on 195/60 profile tyres, the WR-V absorbs bumps pretty decently – certainly better than the Jazz and will handle any pothole-riddled urban street rather well.The electric power steering is from the Jazz and has been re-calibrated for the WR-V. It offers more assistance at lower speeds and can be twirled with ease. The steering is precise and offers good feedback, which makes it enjoyable at higher speeds.

Honda WR V Safety Features

All variants of the Honda WR-V get dual front airbags and ABS with EBD as standard. It also gets a rear camera with multiple viewing angles, but like the City and Jazz, you don’t get rear parking sensors.

Honda WR V Price

Honda Wrv Ex-Showroom Price in Chennai ranges from 7,77,365/- (WRV S MT Petrol) to 9,99,900/- (WRV VX MT Diesel). Get best offers for Honda Wrv from Honda Dealers in Chennai . Check for WR V price in Chennai

Honda WR V Verdict

The Honda WR-V is the first sub-4 meter Crossover from Honda which will help the Japanese Auto manufacturer to boost some sales because their other Crossover the BR-V definitely neither did not impress the Indian crowd much after its launch. The Cross hatchback looks loaded with features and although this is the beefier variant of the Jazz hatchback it gets slightly more interior space than the standard hatchback. Apply Car Loan for Honda WRV