How to run TypeScript files from command line?

node.js typescript
Gunchars picture Gunchars · Nov 5, 2015 · Viewed 220.5k times · Source

I'm having a surprisingly hard time finding an answer to this. With plain Node.JS, you can run any js file with node path/to/file.js, with CoffeeScript it's coffee hello.coffee and ES6 has babel-node hello.js. How do I do the same with Typescript?

My project has a tsconfig.json which is used by Webpack/ts-loader to build a nice little bundle for the browser. I have a need for a build step run from the console before that, though, that would use some of the .ts files used in the project to generate a schema, but I can't seem to be able to run a single Typescript file without compiling the whole project.

Answer

basarat picture basarat · Nov 5, 2015

How do I do the same with Typescript

You can leave tsc running in watch mode using tsc -w -p . and it will generate .js files for you in a live fashion, so you can run node foo.js like normal

TS Node

There is ts-node : https://github.com/TypeStrong/ts-node that will compile the code on the fly and run it through node 🌹

npx ts-node src/foo.ts

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