require-node-example/example1_simple/node_modules/p-is-promise/index.js

An example for how to use npm package: require-node & require-node-loader

'use strict';
module.exports = x => (
	x instanceof Promise ||
	(
		x !== null &&
		typeof x === 'object' &&
		typeof x.then === 'function' &&
		typeof x.catch === 'function'
	)
);