Web Vitals is a new great set of articles on Web.dev (by Google) focussing on delivering a great user experience on the web. To help developers focus on what matters most, they’ve selected a set of metrics which they call “Core Web Vitals”. The metrics that make up Core Web Vitals will evolve over time. […]
Category Archives: Elsewhere
1loc – Single Line JavaScript Snippets
1loc is a site packed with small JavaScript snippets that take up 1 line of code. For example: Compare Two Dates const compare = (a, b) => a.getTime() > b.getTime(); Generate Number in Range const random = (min, max) => Math.floor(Math.random() * (max – min + 1)) + min; Get all siblings of an element […]
25 Basic Docker Commands for Beginners
If you’re trying to learn Docker you will first have to master its various terminal commands. This guide aims to help you get started with basic docker commands. Handy cheat sheet if you’re just starting out with Docker. 25 Basic Docker Commands for Beginners → Via cron.weekly
Tackling TypeScript: Upgrading from JavaScript
New book on TypeScript by Dr. Axel Rauschmayer, who also wrote Exploring ES6 (and a few other books on JavaScript). This book consists of two parts: Part 1 is a quick start for TypeScript that teaches you the essentials quickly. Part 2 digs deeper into the language and covers many important topics in detail. This […]
Emoji Customizer created with CSS Variables
Fun pen by Jakob Eriksen in which he combines Emoji and CSS Custom Properties to create an Emoji Customizer. The reason that this works is because of the fact that emoji can have modifiers. Skin Tone and Hair, as used in the demo above, are such modifiers. Using the ZWJ (“\u200d”) you can glue all […]
How we Know the Distance to Stars
Johnny Harris, whom you might know from the Vox Borders series, on how we can possibly measure the distance to things a quadrillion km away.
How Flocking Birds Make Amazing Murmurations
TIL: Boids Algorithm. And yes, that’s implemented using <canvas>
Using React’s Key Attribute to remount a Component
Nik Graf details a little trick I also use from time to time: changing the key of a React component to force remount it. Upon clicking a contact in the list, the active contact’s id is used as the key for the Detail component. <Detail key={activeContact.id} contact={activeContact} /> Using React’s Key Attribute to remount a […]
JavaScript’s Syntactic Quirks
Jason Orendorff looked into the JS spec, in detail … JavaScript is rather hard to parse. Here is an in-depth accounting of its syntactic quirks, with an eye toward actually implementing a parser from scratch. One quirk most JS devs have will have certainly heard of is Automatic Semicolon Insertion (ASI). JavaScript’s Syntactic Quirks →
Using CSS to Control Text Selection
Will Boyd digs into the user-select CSS property: CSS lets you control how text selection behaves and appears on your pages. This can help you improve usability in certain situations and add a little bit of visual flair. Let’s dive in! His posts includes a very nice hack to make user-select: all; work only at […]