lodash/_MapCache.js

define(['./_mapClear', './_mapDelete', './_mapGet', './_mapHas', './_mapSet'], function(mapClear, mapDelete, mapGet, mapHas, mapSet) {

  /**
   * Creates a map cache object to store key-value pairs.
   *
   * @private
   * @param {Array} [values] The values to cache.
   */
  function MapCache(values) {
    var index = -1,
        length = values ? values.length : 0;

    this.clear();
    while (++index < length) {
      var entry = values[index];
      this.set(entry[0], entry[1]);
    }
  }

  // Add functions to the `MapCache`.
  MapCache.prototype.clear = mapClear;
  MapCache.prototype['delete'] = mapDelete;
  MapCache.prototype.get = mapGet;
  MapCache.prototype.has = mapHas;
  MapCache.prototype.set = mapSet;

  return MapCache;
});