--- title: "JavaScript array filtering tips" url: https://daily.dev/posts/javascript-array-filtering-tips-okntujfsb source_url: https://www.30secondsofcode.org/articles/s/js-array-filtering-tips type: article source: "30 seconds of code" published: 2022-09-28T18:55:41.268Z updated: 2022-09-28T18:55:41.267Z tags: ["javascript", "performance"] reading_time: 2 upvotes: 14 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # JavaScript array filtering tips **[30 seconds of code](https://daily.dev/sources/30seconds)** · 2 min read · 14 upvotes · 0 comments ## Summary If you are looking for a single result in an array, you can use Array.prototype.find() instead. This will return the first element that satisfies the condition, or undefined if no such element exists. If you don't mind mutating the original array, it can be significantly faster than the previous one. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Don’t just attend KubeCon \+ CloudNativeCon, Merge Forward your experience\!](https://daily.dev/posts/don-t-just-attend-kubecon-cloudnativecon-merge-forward-your-experience--l0rpp73x8) · CNCF · 0 upvotes · 0 comments - [Announcing H2 2026 KCDs](https://daily.dev/posts/announcing-h2-2026-kcds-m96goajm1) · CNCF · 1 upvotes · 0 comments - [Two months of Open Community Groups](https://daily.dev/posts/two-months-of-open-community-groups-asf52zhbs) · CNCF · 0 upvotes · 0 comments - [CNCF Unveils Schedule for KubeCon \+ CloudNativeCon Europe 2026](https://daily.dev/posts/cncf-unveils-schedule-for-kubecon-cloudnativecon-europe-2026-ikhcoa5cb) · CNCF · 2 upvotes · 0 comments - [CNCF Debuts KubeCon \+ CloudNativeCon Japan 2026 Schedule](https://daily.dev/posts/cncf-debuts-kubecon-cloudnativecon-japan-2026-schedule-xp5pyudub) · CNCF · 1 upvotes · 0 comments --- Tags: [#javascript](https://daily.dev/tags/javascript), [#performance](https://daily.dev/tags/performance) [View this post on daily.dev](https://daily.dev/posts/javascript-array-filtering-tips-okntujfsb)