An Illustrated (and Musical) Guide to Map, Reduce, and Filter Array Methods

Map, reduce, and filter are three very useful array methods in JavaScript that give developers a ton of power in a short amount of space. Let’s jump right into how you can leverage (and remember how to use!) these super handy methods.

Array.map()
Array.map() updates each individual value in a given array based on a provided transformation and returns a new array of the same size. It accepts a callback function as an argument, which it uses to apply the … Read article
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