lodash-es/_MapCache.js

import mapClear from './_mapClear';
import mapDelete from './_mapDelete';
import mapGet from './_mapGet';
import mapHas from './_mapHas';
import mapSet from './_mapSet';

/**
 * Creates a map cache object to store key-value pairs.
 *
 * @private
 * @constructor
 * @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 methods to `MapCache`.
MapCache.prototype.clear = mapClear;
MapCache.prototype['delete'] = mapDelete;
MapCache.prototype.get = mapGet;
MapCache.prototype.has = mapHas;
MapCache.prototype.set = mapSet;

export default MapCache;