The release of Firefox 127 introduces new JavaScript Set methods, now supported across major browser engines. Polyfills are no longer needed to make them work everywhere. These additions provide conve ...

Summary JavaScript arrays come with some great methods that can simplify our development efforts. Knowing them can save us time and, in some cases, even boost the performance of our code.

JavaScript’s reduce is one of the most useful array methods that should be in a developer’s arsenal. Introduced in ES5, it’s somewhat similar to for…each and map methods that are used with ...