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 ...

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 ...

Arrays are wonderful and a very particular type in JavaScript. There are many useful built-in properties and methods that will help you resolve any task which involves this kind of type. Today, we ...

JavaScript provides a number of options -- from simple to complex -- that allows you to format and display numbers as currency. Regardless of which you use, however, the process is not as simple ...