lodash/zipObject.js

define(['./internal/baseSet'], function(baseSet) {

  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
  var undefined;

  /**
   * This method is like `_.fromPairs` except that it accepts two arrays,
   * one of property names and one of corresponding values.
   *
   * @static
   * @memberOf _
   * @category Array
   * @param {Array} [props=[]] The property names.
   * @param {Array} [values=[]] The property values.
   * @returns {Object} Returns the new object.
   * @example
   *
   * _.zipObject(['fred', 'barney'], [30, 40]);
   * // => { 'fred': 30, 'barney': 40 }
   */
  function zipObject(props, values) {
    var index = -1,
        length = props ? props.length : 0,
        valsLength = values ? values.length : 0,
        result = {};

    while (++index < length) {
      baseSet(result, props[index], index < valsLength ? values[index] : undefined);
    }
    return result;
  }

  return zipObject;
});