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Enforcing performance budgets with webpack
18.9.2020
As you probably know, a single monolithic JavaScript bundle — once a best practice — is no longer the way to go for modern web applications. Research has shown that larger bundles increase memory usage and CPU costs, especially on mid-range and low-end mobile devices.
webpack has a lot of features...
Weaved Webs
17.9.2020
There is a bit of an irony with Jamstack.
The concept is simple: you put pre-rendered, static files on web hosting (a CDN) designed to do that well. That’s it. If you need to do more, anything you do from there is done with client-side JavaScript, which is likely talking to serverless...
Interaction Media Features and Their Potential (for Incorrect Assumptions)
14.9.2020
The Media Queries Level 4 Interaction Media Features — pointer, hover, any-pointer and any-hover — are meant to allow sites to implement different styles and functionality (either CSS-specific interactivity like :hover, or JavaScript behaviors, when queried using window.matchMedia), depending...
5 Awesome JavaScript Promise Tricks
14.9.2020
The Promise API changed the game in JavaScript. We went from abusing setTimeouts and settling for synchronous operations to doing everything possible to leverage this new async API. Let’s check out a handful of awesome Promise API tricks! Cancel a fetch Request One problem we instantly...
Logical Assignment Operators
10.9.2020
I love JavaScript, it’s my favorite programming language, but I love dipping into other languages because they offer a new perspective on coding paradigms. There’ve been syntax additions to JavaScript that I’ve seen I found interesting (think ?? in optional chaining) and now...
Modifying Specific Letters with CSS and JavaScript
10.9.2020
Changing specific characters can be a challenge in CSS. Often, we’re forced to implement our desired changes one-by-one in HTML, perhaps using the span element. But, in a few specific cases, a CSS-focused solution may still be possible. In this article, we’ll start by looking at some CSS-first...
Import Non-ESM libraries in ES Modules, with Client-Side Vanilla JS
7.9.2020
We’re living through a weird era where there are tons of JavaScript libraries that were meant to be used as <script> tags that expose available globals. AND there are tons of JavaScript libraries that are meant to be used through module loaders. AND there are tons of JavaScript...
Working with JavaScript Media Queries
7.9.2020
What’s the first thing that comes to mind when you think of media queries? Maybe something in a CSS file that looks like this:
body {
background-color: plum;
}
@media (min-width: 768px) {
body {
background-color: tomato;
}
}
CSS media queries are a core ingredient in any responsive...
Supercharging Number Inputs
4.9.2020
Speaking of number scrubbing (i.e. adding mouse UX to number inputs), you can also add better keyboard commands to number inputs. Kilian Valkhof explains how he added up and down arrows to a number input, as well as modifier keys to change how much the keys increment the value, like Emmet does....
Doom Damage Flash on Scroll
26.8.2020
The video game Doom famously would flash the screen red when you were hit. Chris Johnson not only took that idea, but incorporated a bunch of the UI from Doom into this tounge-in-cheek JavaScript library called Doom Scroller. Get it? Like, doom scrolling, but like, Doom scrolling. It’s funny...
Comparing Data in Google and Netlify Analytics
25.8.2020
Jim Nielsen:
the datasets weren’t even close for me.
Google Analytics works by putting a client-side bit of JavaScript on your site. Netlify Analytics works by parsing server logs server-side. They are not exactly apples to apples, feature-wise. Google Analytics is, I think it’s fair...
Designing a JavaScript Plugin System
25.8.2020
WordPress has plugins. jQuery has plugins. Gatsby, Eleventy, and Vue do, too.
Plugins are a common feature of libraries and frameworks, and for a good reason: they allow developers to add functionality, in a safe, scalable way. This makes the core project more valuable, and it builds a community...
Match Emojis with Regular Expressions
19.8.2020
When experimenting with unicode property escapes, to identify accented letters in strings, it reminded me of a question I had a few years ago: what is the best way to identify and then replace emojis in a string? I first noticed this practice when using emojis in Facebook — sometimes Facebook...
Simple Node.js Proxy
18.8.2020
When I wanted to refresh my React.js skills, I quickly moved to create a dashboard of cryptocurrencies, their prices, and and other aspects of digital value. Getting rolling with React.js is a breeze — create-react-app {name} and you’re off and running. Getting the API working...
radEventListener: a Tale of Client-side Framework Performance
18.8.2020
React is popular, popular enough that it receives its fair share of criticism. Yet, this criticism of React isn’t completely unwarranted: React and ReactDOM total about 120 KiB of minified JavaScript, which definitely contributes to slow startup time. When client-side rendering in React is relied...
Stacked Cards with Sticky Positioning and a Dash of Sass
13.8.2020
The other day, I spotted this particularly lovely bit from Corey Ginnivan’s website where a collection of cards stack on top of one another as you scroll.
I started wondering how much JavaScript this would involve and how you’d go about making it when I realized — ah! — this must be the work...
Practical Use Cases for JavaScript’s closest() Method
12.8.2020
Have you ever had the problem of finding the parent of a DOM node in JavaScript, but aren’t sure how many levels you have to traverse up to get to it? Let’s look at this HTML for instance:
<div data-id="123"<buttonClick me</button</div
That’s pretty straightforward, right? Say...
PSF Token Invokes the First Coin-Age Staking Protocol on Bitcoin Cash
11.8.2020
During the last six months, the Simple Ledger Protocol has grown immensely and there’s been 9,604 SLP tokens created since the infrastructure launched. Just recently news.Bitcoin.com reported on mistcoin, the mineable SLP token that can be mined with a CPU. Now software developer Chris...
Nailing the Perfect Contrast Between Light Text and a Background Image
7.8.2020
Have you ever come across a site where light text is sitting on a light background image? If you have, you’ll know how difficult that is to read. A popular way to avoid that is to use a transparent overlay. But this leads to an important question: Just how transparent should that overlay...
JavaScript Fatigue
6.8.2020
From Nicholas Zakas’ newsletter, on how he avoids JavaScript fatigue:
 I don’t try to learn about every new thing that comes out. There’s a limited number of hours in the day and a limited amount of energy you can devote to any topic, so I choose not to learn about anything...