How JavaScript’s at() method makes array indexing easier
A little reminder from Matt Smith that getting the last item in an Array is easier now:
Tag Archive for
JavaScript
Promises From The Ground Up
Josh Comeau does a great job with beginner-friendly explanations of important concepts, and Promises From The Ground Up is no exception. In a nutshell, we have Promises because we need callbacks. We need callbacks because JavaScript is single-threaded and can’t wait around for things. And so we dance. These days, you’ll see more async and […]
Iterator Helpers Supported Across all Browsers
Feels notable that Iterator helpers have become Baseline Newly available. The gist is that you can map and filter on stuff that was annoying or impossible to before. I’ll copy Jeremy Wagner’s example:
Import Assertions use “with” not “assert” anymore.
I was trying to play with CSS Module Scripts the other day, which are a way to import CSS as a constructable stylesheet using the ESModules syntax. They are Chrome-only so not really something we can generally use (unless you’re building an Electron app or something), but I really like the idea of being able […]
firstChild can be white space
Just a tiny gotcha.
CSS Spotlight Effect
We can pass the mouse position from JavaScript to CSS and use it to make unusual and playful effects.
RedwoodSDK
A bit of a pivot from the Redwood gang, splitting RedwoodJS into Redwood GraphQL … To minimize disruption and provide clarity going forward, we’re renaming the existing RedwoodJS framework to Redwood GraphQL, reflecting its strength as a mature, stable framework built around GraphQL. … and the newfangled RedwoodSDK. Redwood has always been ultra opinionated (I […]
Comparing Iterators
Matt Smith on when to use map() vs. forEach() in JavaScript. Just one of those things I can imagine asking or being asked in a coding interview. Some interesting comments below the article as well.
React Internals: Which useEffect runs first?
It’s not particularly obvious, but a child’s useEffect will run before a parent’s will. Let’s look at why.
What’s the difference between ESLint and TypeScript?
What is the difference between ESLint and TypeScript? Perhaps that feels like a strange question as ESLint is a, uhm, linter, and TypeScript is a language that compiles to JavaScript. Josh Goldberg writes how there is some overlap: While ESLint and TypeScript operate differently and specialize in different areas of code defects, there is some […]