⚠️ Please use the offical TypeScript playground, now it has all the same features and even more. Use https://github.com/microsoft/TypeScript-Website/issues for issues and questions.

TypeScript playground

A better TypeScript playground.

Website: https://typescript-play.js.org.

Differences from https://www.typescriptlang.org/play:

• All strict options turned on by default
• More available compiler options
• Ability to switch TypeScript version
• More space for code
• More examples
• Quicker sharing, URL updates as you type
• Shorter sharing URLs

Getting started

npm install
npm run setup
npm start

Updating TypeScript

Playground relies on UNPKG to fetch monaco-editor (contains typescript through monaco-typescript package).

In case if monaco-editor is not updated to the latest TypeScript, the latest version can be built with npm run get-typescript latest and served locally. If you run into errors, the latest monaco version may be incompatible with the latest typescript version, in which case you'll need to update monaco-typescript upstream, or apply a patch locally (see the # Patches section in get-typescript.sh.

In case you want to serve some specific version of TypeScript locally you should run npm run get-typescript <version>. For example, to serve TypeScript version 2.8.3 you should run npm run get-typescript 2.8.3; npm start

Browser compatibility

Tested with:

• Chrome 65
• Safari 11
• Firefox 58
• Microsoft Edge 41

Prior art

• https://fabiandev.github.io/typescript-playground/
• http://hi104.github.io/typescript-playground-on-ace/
• http://drake7707.github.io/Typescript-Editor/
• http://niutech.github.io/typescript-interpret/

Other useful links

• https://typescript-api-playground.glitch.me/ – exlore TS transforms
• https://ts-ast-viewer.com/ – TS AST viewer
• https://ts-creator.js.org/ - turn TypeScript code into AST builder expressions