#the-web #javascript

How much JavaScript do we really need?

How much should we invest in JavaScript as developers? I’ve asked myself that question over and over again. Around last year I came to a conclusion: I strongly believe JavaScript is a requirement for excellent user experiences. Not good experiences, excellent experiences.

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#react #javascript

Forget about component lifecycles and start thinking in effects

React components have always relied on lifecycle methods for side effects. While lifecycle methods get the job done, they’re often overly verbose and have large margins for error.

It’s easy to forget to “clean up” a side effect when a component unmounts, or update the side effect when props change. As Dan Abramov preaches: Don’t stop the data flow.

React recently introduced a new way to deal with side effects: the useEffect hook. Translating lifecycle methods to useEffect calls can be confusing at first. It’s confusing because we shouldn’t be translating imperative lifecycle methods to declarative useEffect calls in the first place.

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#react #vue.js #javascript

React for Vue developers

For the past three years, I’ve been using both React and Vue in different projects, ranging from smaller websites to large scale apps.

Last month I wrote a post about why I prefer React over Vue. Shortly after I joined Adam Wathan on Full Stack Radio to talk about React from a Vue developer’s perspective.

We covered a lot of ground on the podcast, but most things we talked about could benefit from some code snippets to illustrate their similaraties and differences.

This post is a succinct rundown of most Vue features, and how I would write them with React in 2019 with hooks.

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#react #vue.js #javascript / www.fullstackradio.com

Full Stack Radio 114: React for Vue developers

I had the honor to be a guest on Full Stack Radio with Adam Wathan.

We talked about why I prefer React over Vue — which I wrote about two weeks ago — and how to implement some patterns that Vue provides out of the box but aren’t explicitly available in React. Examples include computed properties, events and slots.

Adam’s quote:

In this episode, Adam talks to Sebastian De Deyne about learning React from the perspective of a Vue developer, and how to translate all of the Vue features you’re already comfortable with to React code.

Tune in on fullstackradio.com or on your favorite podcatcher!


#javascript #react / www.netlify.com

Understand React hooks internals with a 28-line React clone

Shawn Wang (@swyx) wrote about how React hooks work internally. The article is a deep dive into JavaScript closures, and builds up to a 28-line React clone with support for the useEffect and useState hooks.

In this article, we reintroduce closures by building a tiny clone of React Hooks. This will serve two purposes – to demonstrate the effective use of closures, and to show how you can build a Hooks clone in just 29 lines of readable JS. Finally, we arrive at how Custom Hooks naturally arise.

Understanding how React deals with hooks internally isn’t a required to use them, but it’s interesting material nonetheless!

You can read the full article on the Netlify blog.


#web-components #javascript #the-web

Web components

Every now and then, web components hype seems to resurface. Judging by my Twitter feed, it’s a bull market period now. Seems like a good time to share some thoughts.

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#javascript #react #vue.js

Why I prefer React over Vue

Vue is the default JavaScript framework for Laravel apps. Being part of the Laravel community, I often get the question why I prefer React, so I’ve decided to write down a few standout reasons.

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#the-web #javascript / css-tricks.com

The great divide

Chris Coyier consolidated an array of opinions about what it means to be a frontend developer today.

On one side, an army of developers whose interests, responsibilities, and skill sets are heavily revolved around JavaScript.

On the other, an army of developers whose interests, responsibilities, and skill sets are focused on other areas of the front end, like HTML, CSS, design, interaction, patterns, accessibility, etc.

It’s that other side that seems to really be feeling this divide. A quote from Mandy Michael:

What I don’t understand is why it’s okay if you can “just write JS”, but somehow you’re not good enough if you “just write HTML and CSS”.

When every new website on the internet has perfect, semantic, accessible HTML and exceptionally executed, accessible CSS that works on every device and browser, then you can tell me that these languages are not valuable on their own. Until then we need to stop devaluing CSS and HTML.

A lot of these excerpts really hit home. I’m looking forward to the conversation this might spark.

Read the full piece on css-tricks.com.


#javascript #performance / kryogenix.org

Everyone has JavaScript, right?

I used to think disabled JavaScript went hand in hand with visitors explicitly blocking it. I came to the conclusion that I don’t necessarily need to cater to that crowd, because the degraded user experience was by choice. After reading through this chart, I realized how wrong I was.

Sometimes your JavaScript just won’t work. Be prepared.

Read the flowchart on kryogenix.org.


#javascript #performance / gomakethings.com

Not all code is the same

As a short follow-up to Everyone has JavaScript, right?, there’s more to JavaScript than availability, there are also the performance implications.

I don’t think most people are saying, “don’t use JavaScript.” That would be absurd.

But use less, use it wisely, and don’t depend on a giant framework for simple stuff. Use as little JS as possible to get the experience you want. You can do that and still have a great, immersive app.

I believe we’re reaching for JavaScript more often because of its ecosystem, not because it’s the better solution. The JavaScript ecosystem simply has incredible tools to build interfaces, and I hope server side solutions will still be able to compete.

I don’t have a conclusion ready, I’m just interested in the topic. To be explored in 2019. Meanwhile, read Chris Ferdinandi’s thoughts on the matter.