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

DevFeed: [An Illustrated (and Musical) Guide to Map, Reduce, and Filter Array Methods](<https://devfeed.tech/articles/an-illustrated-and-musical-guide-to-map-reduce-and-filter-array-methods-28810.md>)

Original publisher: [Read original article](<https://una.im/map-reduce-filter/>)

Published: 2019-03-26T00:00:00Z

Content type: tutorial

Language: en

Sources: [Una Kravets](<https://devfeed.tech/sources/una-kravets.md>)

Topics: [JavaScript](<https://devfeed.tech/topics/javascript.md>)

Tags: [array](<https://devfeed.tech/tags/array.md>), [filter](<https://devfeed.tech/tags/filter.md>), [guide](<https://devfeed.tech/tags/guide.md>), [javascript](<https://devfeed.tech/tags/javascript.md>), [map](<https://devfeed.tech/tags/map.md>), [reduce](<https://devfeed.tech/tags/reduce.md>)

## AI overview

An illustrated and musical guide to JavaScript's map, reduce, and filter array methods, explaining these useful methods in an accessible way.

## Source excerpt

Map, reduce, and filter are three very useful array methods in JavaScript that give developers a ton of power. This post makes them a little easier to understand.