--- title: 7 JavaScript Best Practices to Improve Code Quality description: Since 2015, with the release of ES6, a new version of the ECMAScript spec has been released each year. Each iteration adds new features, new syntax, and... canonical: https://daily.dev/posts/7-javascript-best-practices-to-improve-code-quality-bfj6-dvzk twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: 7 JavaScript Best Practices to Improve Code Quality | daily.dev og:description: Since 2015, with the release of ES6, a new version of the ECMAScript spec has been released each year. Each iteration adds new features, new syntax, and... og:url: https://daily.dev/posts/7-javascript-best-practices-to-improve-code-quality-bfj6-dvzk og:image: https://api.daily.dev/og/posts/BFJ6-dVZk.png og:image:alt: 7 JavaScript Best Practices to Improve Code Quality 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. # 7 JavaScript Best Practices to Improve Code Quality **[DZone](https://daily.dev/sources/dz)** · 7 min read · 50 upvotes · 2 comments ## Summary Since 2015, with the release of ES6, a new version of the ECMAScript spec has been released each year. Each iteration adds new features, new syntax, and Quality of Life improvements to the language. JavaScript engines in most browsers and Node.js quickly catch up, and it’s only fair that your code should catch up. ## 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. **@w01fw00d** · 1 upvotes > Knowing these features should be a must-know for all js developers. > > > > > Specially interesting the part about named capture groups in regular expressions. **@phoenixeliot** · 0 upvotes > "block scored" should be "block scoped" ## 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 - [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: [#general-programming](https://daily.dev/tags/general-programming), [#javascript](https://daily.dev/tags/javascript) [View this post on daily.dev](https://daily.dev/posts/7-javascript-best-practices-to-improve-code-quality-bfj6-dvzk) ```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":"7 JavaScript Best Practices to Improve Code Quality","url":"https://daily.dev/posts/7-javascript-best-practices-to-improve-code-quality-bfj6-dvzk","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/7-javascript-best-practices-to-improve-code-quality-bfj6-dvzk"},"datePublished":"2021-04-21T22:08:58.339Z","dateModified":"2021-10-07T14:17:10.317Z","description":"Since 2015, with the release of ES6, a new version of the ECMAScript spec has been released each year. 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