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Formatters & Code

JavaScript / TypeScript Formatter

Gratis JavaScript en TypeScript formatter. Prettier's standaardregels, volledig in-browser uitgevoerd — detecteert TypeScript automatisch aan de hand van type-annotaties. Plakken, klikken, kopiëren.

Runs in your browser
JavaScript / TypeScript formatter & validator
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JavaScript / TypeScript · UTF-8 · 2-space indent

Redactionele opmerking

Understanding · JS, set to a house style.

Dit uitgebreide hoofdstuk is momenteel alleen in het Engels beschikbaar. De conversietool hierboven werkt in jouw taal; de lange uitleg is nog niet vertaald.

Veelgestelde vragen

Quick answers.

Does it handle TypeScript?

Yes — the tool auto-detects TypeScript from type annotations (`: string`, `interface Foo`, `type X = ...`) and routes to Prettier's TS parser. You don't have to toggle anything.

Which Prettier options does it use?

Prettier's out-of-box defaults: 2-space indent, semicolons, double quotes, 80-column print width, trailing commas. These match the vast majority of published codebases.

Will it change my code's behaviour?

No — Prettier only reformats; it never changes semantics. The output runs identically to the input, byte-for-byte after transpilation.

Can it minify JavaScript?

No — Prettier is a formatter, not a minifier. For production minification use Terser, esbuild or SWC locally. They produce far smaller output than a whitespace collapser would.

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