--- title: Master React Unidirectional Data Flow | daily.dev description: Unidirectional data flow is a core React best practice where child components raise data to parents via callbacks, while parents pass data down as props. This... canonical: https://daily.dev/posts/master-react-unidirectional-data-flow-cqjqyfzxg twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Master React Unidirectional Data Flow | daily.dev og:description: Unidirectional data flow is a core React best practice where child components raise data to parents via callbacks, while parents pass data down as props. This... og:url: https://daily.dev/posts/master-react-unidirectional-data-flow-cqjqyfzxg og:image: https://api.daily.dev/og/posts/CqjqYFzXg.png og:image:alt: Master React Unidirectional Data Flow 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. # Master React Unidirectional Data Flow **[Playful Programming](https://daily.dev/sources/playfulprogramming)** · [@crutchcorn](https://daily.dev/crutchcorn) · 5 min read · 0 upvotes · 0 comments ## Summary Unidirectional data flow is a core React best practice where child components raise data to parents via callbacks, while parents pass data down as props. This keeps state consolidated in parent components, creating 'dumb' child components focused only on presentation. The post contrasts the correct pattern (lifting state up) with an anti-pattern using refs to access child state from a parent, visualizing how bidirectional data flow adds complexity. The conclusion notes this pattern applies to Angular and Vue as well, and includes a refactoring challenge. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [React Basics: Thinking in React](https://daily.dev/posts/react-basics-thinking-in-react-bxfmesfzy) · Telerik · 4 upvotes · 0 comments - [Angular Bindings: What Are They and How Do I use Them?](https://daily.dev/posts/angular-bindings-what-are-they-and-how-do-i-use-them--dihhw77hc) · Atomic Spin · 0 upvotes · 0 comments - [Component Communication Patterns in React Applications](https://daily.dev/posts/component-communication-patterns-in-react-applications-4niwdcm2o) · Neciu Dan · 18 upvotes · 1 comments --- Tags: [#javascript](https://daily.dev/tags/javascript), [#react](https://daily.dev/tags/react) [View this post on daily.dev](https://daily.dev/posts/master-react-unidirectional-data-flow-cqjqyfzxg) ```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":"Master React Unidirectional Data Flow","url":"https://daily.dev/posts/master-react-unidirectional-data-flow-cqjqyfzxg","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/master-react-unidirectional-data-flow-cqjqyfzxg"},"datePublished":"2026-03-16T21:47:20.903Z","dateModified":"2026-03-17T18:00:59.592Z","description":"Unidirectional data flow is a core React best practice where child components raise data to parents via callbacks, while parents pass data down as props. 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