--- title: Goodbye if-else, Hello Pattern Matching in JavaScript... description: JavaScript is evolving with the proposal of pattern matching, which aims to replace if-else statements with a more declarative syntax. Pattern matching allows... canonical: https://daily.dev/posts/goodbye-if-else-hello-pattern-matching-in-javascript-proposal--foyris1iu twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Goodbye if-else, Hello Pattern Matching in JavaScript (PROPOSAL) | daily.dev og:description: JavaScript is evolving with the proposal of pattern matching, which aims to replace if-else statements with a more declarative syntax. Pattern matching allows... og:url: https://daily.dev/posts/goodbye-if-else-hello-pattern-matching-in-javascript-proposal--foyris1iu og:image: https://api.daily.dev/og/posts/fOyRiS1iu.png og:image:alt: Goodbye if-else, Hello Pattern Matching in JavaScript (PROPOSAL) 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. # Goodbye if-else, Hello Pattern Matching in JavaScript (PROPOSAL) **[Medium](https://daily.dev/sources/medium_js)** · 4 min read · 2 upvotes · 0 comments ## Summary JavaScript is evolving with the proposal of pattern matching, which aims to replace if-else statements with a more declarative syntax. Pattern matching allows for matching against the shape and contents of a value in a single expression, providing a more concise alternative to chained if-else statements and switch cases. It can match literals, variables, objects, and types, and offers advantages such as a more declarative syntax, the ability to match full objects, and the automatic handling of default cases. Pattern matching is currently a Stage 1 ECMAScript proposal and can be compiled to supported JavaScript using Babel. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#javascript](https://daily.dev/tags/javascript), [#data-science](https://daily.dev/tags/data-science), [#nodejs](https://daily.dev/tags/nodejs), [#babel](https://daily.dev/tags/babel) [View this post on daily.dev](https://daily.dev/posts/goodbye-if-else-hello-pattern-matching-in-javascript-proposal--foyris1iu) ```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":"Goodbye if-else, Hello Pattern Matching in JavaScript (PROPOSAL)","url":"https://daily.dev/posts/goodbye-if-else-hello-pattern-matching-in-javascript-proposal--foyris1iu","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/goodbye-if-else-hello-pattern-matching-in-javascript-proposal--foyris1iu"},"datePublished":"2023-10-13T16:58:14.360Z","dateModified":"2023-10-12T08:57:52.866Z","description":"JavaScript is evolving with the proposal of pattern matching, which aims to replace if-else statements with a more declarative syntax. 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