1  var mapCacheClear = require('./_mapCacheClear'),
 2      mapCacheDelete = require('./_mapCacheDelete'),
 3      mapCacheGet = require('./_mapCacheGet'),
 4      mapCacheHas = require('./_mapCacheHas'),
 5      mapCacheSet = require('./_mapCacheSet');
 6  
 7  /**
 8   * Creates a map cache object to store key-value pairs.
 9   *
10   * @private
11   * @constructor
12   * @param {Array} [entries] The key-value pairs to cache.
13   */
14  function MapCache(entries) {
15    var index = -1,
16        length = entries == null ? 0 : entries.length;
17  
18    this.clear();
19    while (++index < length) {
20      var entry = entries[index];
21      this.set(entry[0], entry[1]);
22    }
23  }
24  
25  // Add methods to `MapCache`.
26  MapCache.prototype.clear = mapCacheClear;
27  MapCache.prototype['delete'] = mapCacheDelete;
28  MapCache.prototype.get = mapCacheGet;
29  MapCache.prototype.has = mapCacheHas;
30  MapCache.prototype.set = mapCacheSet;
31  
32  module.exports = MapCache;