--- title: JavaScript testing: 9 best practices to learn | daily.dev description: Tests act as a piece of documentation for other developers. By reading the tests you’ve created, they should get a good understanding of the purpose of the... canonical: https://daily.dev/posts/javascript-testing-9-best-practices-to-learn-ni-uhsmpq twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: JavaScript testing: 9 best practices to learn | daily.dev og:description: Tests act as a piece of documentation for other developers. By reading the tests you’ve created, they should get a good understanding of the purpose of the... og:url: https://daily.dev/posts/javascript-testing-9-best-practices-to-learn-ni-uhsmpq og:image: https://api.daily.dev/og/posts/ni-UhsmPQ.png og:image:alt: JavaScript testing: 9 best practices to learn og:image:width: 1200 og:image:height: 630 og:locale: 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 testing: 9 best practices to learn **[LogRocket](https://daily.dev/sources/logrocket)** · 9 min read · 26 upvotes · 1 comments ## Summary Tests act as a piece of documentation for other developers. By reading the tests you’ve created, they should get a good understanding of the purpose of the code. You want to break up the logic inside tests into three parts to make them easier to understand. The AAA pattern stands for Arrange, Act, and Assert. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Community discussion Top comments from developers on daily.dev. **@eo4wellness192** · 2 upvotes > This is true. testing is really necessary but often avoided. Thanks! ## 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 · 1 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 --- Tags: [#general-programming](https://daily.dev/tags/general-programming), [#javascript](https://daily.dev/tags/javascript), [#testing](https://daily.dev/tags/testing) [View this post on daily.dev](https://daily.dev/posts/javascript-testing-9-best-practices-to-learn-ni-uhsmpq) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"JavaScript testing: 9 best practices to learn","url":"https://daily.dev/posts/javascript-testing-9-best-practices-to-learn-ni-uhsmpq","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/javascript-testing-9-best-practices-to-learn-ni-uhsmpq"},"datePublished":"2021-05-12T16:10:07.527Z","dateModified":"2021-10-07T14:17:10.317Z","description":"Tests act as a piece of documentation for other developers. 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