--- title: Refactor like a PRO | daily.dev description: Refactoring is the act of improving the structure of code without modifying its behavior. It is a continuous practice that simplifies design, improves namings,... canonical: https://daily.dev/posts/refactor-like-a-pro-s3yoa94d6 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Refactor like a PRO | daily.dev og:description: Refactoring is the act of improving the structure of code without modifying its behavior. It is a continuous practice that simplifies design, improves namings,... og:url: https://daily.dev/posts/refactor-like-a-pro-s3yoa94d6 og:image: https://api.daily.dev/og/posts/s3yOa94D6.png og:image:alt: Refactor like a PRO 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. # Refactor like a PRO **[Substack](https://daily.dev/sources/substack)** · 4 min read · 308 upvotes · 8 comments ## Summary Refactoring is the act of improving the structure of code without modifying its behavior. It is a continuous practice that simplifies design, improves namings, identifies and removes code smells, and improves testability and maintainability. To become a pro in refactoring, one should practice aggressive refactoring at small scales, master the refactoring hotkeys of their IDE, use mutation testing before refactoring code, turn comments into well-named components, follow the Rule of Three for removing duplication, separate refactoring from changing behavior, and use TDD to make refactoring a core part of development. ## 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. **@sudhirwebdev** · 2 upvotes > That's what I do all day. Haha **@akiragost** · 1 upvotes > Refactoring? More like re-freshening Keep it simple, smart, and speedy. **@alissondereg** · 1 upvotes > making refactoring a part of my everyday work is so hard, I usually just finish what I have to do and deliver, refactoring existent code doesnt even cross my mind. may need to change that if I want to go from mid-level to senior **@raghuwarjangir** · 0 upvotes > articles like these keep my development journey interesting and fascinating. 👍 **@akhilarvapalli43** · 0 upvotes > Simple well written article ## 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: [#mutation-testing](https://daily.dev/tags/mutation-testing), [#tdd](https://daily.dev/tags/tdd) [View this post on daily.dev](https://daily.dev/posts/refactor-like-a-pro-s3yoa94d6) ```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":"Refactor like a PRO","url":"https://daily.dev/posts/refactor-like-a-pro-s3yoa94d6","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/refactor-like-a-pro-s3yoa94d6"},"datePublished":"2024-04-14T00:43:21.844Z","dateModified":"2026-04-17T02:12:35.930Z","description":"Refactoring is the act of improving the structure of code without modifying its behavior. 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Haha","datePublished":"2024-04-14T05:12:28.745Z","url":"https://daily.dev/posts/s3yOa94D6#c-Uweu1apfe","author":{"@type":"Person","name":"sudhir kumar kalivarapu","url":"https://daily.dev/sudhirwebdev","image":"https://lh3.googleusercontent.com/a/ACg8ocIbMbu-POFyIxz1YILjAQH7w7IiPgtGfKz8N7rp1RWYww=s96-c"},"interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":2}},{"@type":"Comment","text":"Refactoring? More like re-freshening Keep it simple, smart, and speedy.","datePublished":"2024-05-15T08:20:31.661Z","url":"https://daily.dev/posts/s3yOa94D6#c-XNeseA4kp","author":{"@type":"Person","name":"Akira","url":"https://daily.dev/akiragost","image":"https://media.daily.dev/image/upload/s--x25XuPxM--/f_auto/v1715732437/avatars/avatar_Ns0ytmiHnwXkKSKGiCpOC"},"interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1}},{"@type":"Comment","text":"making refactoring a part of my everyday work is so hard, I usually just finish what I have to do and deliver, refactoring existent code doesnt even cross my mind. may need to change that if I want to go from mid-level to senior","datePublished":"2024-05-24T17:43:16.708Z","url":"https://daily.dev/posts/s3yOa94D6#c-kPRBdSpFy","author":{"@type":"Person","name":"Alisson","url":"https://daily.dev/alissondereg","image":"https://media.daily.dev/image/upload/s--O0TOmw4y--/f_auto/v1715772965/public/noProfile"},"interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1}},{"@type":"Comment","text":"articles like these keep my development journey interesting and fascinating. 👍","datePublished":"2024-05-10T11:22:51.687Z","url":"https://daily.dev/posts/s3yOa94D6#c-BAI1lL4fg","author":{"@type":"Person","name":"Raghuwar Jangir","url":"https://daily.dev/raghuwarjangir","image":"https://lh3.googleusercontent.com/a/ACg8ocINNUR3sOlXBttdfvQH-sLjCZj0E-fiEXlP9v76fVdV=s96-c"}},{"@type":"Comment","text":"Simple well written article","datePublished":"2024-05-03T12:50:09.574Z","url":"https://daily.dev/posts/s3yOa94D6#c-7rcahn9Kw","author":{"@type":"Person","name":"Akhil Arvapalli","url":"https://daily.dev/akhilarvapalli43","image":"https://media.daily.dev/image/upload/s--O0TOmw4y--/f_auto/v1715772965/public/noProfile"}}]} ```