map is used to transform each element of an array, while forEach is used to run a function on each element without changing the array. Although they may look almost identical, there are certain differences between them. The primary purpose of both these methods is to iterate through arrays. In JavaScript, forEach and map are two of the most popular methods to work with arrays. And when you’re working with arrays, you often need to process array elements, so you need a way to loop through each element of an array. In this series, we’re discussing different tips and tricks that will help you in your day-to-day JavaScript development.Īs a part of your day-to-day JavaScript development, you often need to work with arrays. The majority of websites use it, and all modern web browsers support it without the need for plugins. ![]() ![]() ![]() JavaScript is one of the core technologies of the web. In this article, we’ll discuss the map and forEach methods in JavaScript, and we’ll also go through the differences between them to understand when to use each one.
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