qb-assign/index.js

A tiny Object.assign implementation that works down to IE9 (uses Object.keys)

module.exports = function () {
  var ret = Object(arguments[0])
  for (var i = 1; i < arguments.length; i++) {
    var src = arguments[i]
    if (src != null) {
      Object.keys(src).forEach(function (k) { ret[k] = src[k] })
    }
  }
  return ret
}