require-node-example/example1_simple/node_modules/yargs/lib/yerror.js

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

'use strict'
function YError (msg) {
  this.name = 'YError'
  this.message = msg || 'yargs error'
  Error.captureStackTrace(this, YError)
}

YError.prototype = Object.create(Error.prototype)
YError.prototype.constructor = YError

module.exports = YError