Pass command-line arguments to NPM script

Syntax

npm run <cmd> -- <your-args>

Example

Suppose you have a test script in your package.json:

{
   "scripts": {
      "test": "jest",
    }
}

And you want to run npm run test but with additional arguments. Something like:

jest --watch utils.spec.ts

You can do this with:

npm run test -- --watch utils.spec.ts