7 new Set methods in JavaScript: union(), intersection(), +5 more

By rahmat hidayat

Thursday, February 15, 2024

New JavaScript Set methods, weird HTML line breaks, and Mutation Observer

Coding puzzle Guess the output! Featured content 7 new Set methods in JavaScript: union(), intersection(), +5 more 1. union() The new Set union() method gives us all the unique items in both sets. And since it's immutable and returns a copy, you can chain it indefinitely: 2. intersection() What elements are in both sets? Read more Master JavaScript Mutation Observer: amazing real-world use cases JavaScript Mutation Observer. An underrated API for watching for changes in the DOM: "child added", "attribute changed", and more. I see a bunch of people online curious to know the point of this API in the real-world. In this post I'll show you how I used it to easily shut-up this annoying script carrying out unwanted activities on the page. And you'll see how sleek and polished the UI elements became after this. Read more 3 ways to show line breaks in HTML without ever using br Of course <br/> is what we all grew up with from our HTML beginnings, but there's more. Like... CSS white-space: pre-wrap: Read more View all in blog On Twitter/X Follow

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