function-exec-sync

Run an exported function in a Node.js process and return its value.

npm install function-exec-sync
Copy

Create worker.cjs:

module.exports = function (name, count) {
  return Array(count + 1).join(name);
};
Copy

Call it from another CommonJS file:

var path = require('path');
var call = require('function-exec-sync');

var result = call(path.join(__dirname, 'worker.cjs'), 'ha', 2);
console.log(result); // "haha"
Copy

Pass execPath in an options object to select a Node executable:

var result = call({ execPath: '/path/to/node' }, path.join(__dirname, 'worker.cjs'), 'ha', 2);
Copy

The target module, arguments, and returned value cross a process boundary, so keep them serializable by this package. Circular values are not supported.

Documentation

API Docs