1  var getMapData = require('./_getMapData');
 2  
 3  /**
 4   * Sets the map `key` to `value`.
 5   *
 6   * @private
 7   * @name set
 8   * @memberOf MapCache
 9   * @param {string} key The key of the value to set.
10   * @param {*} value The value to set.
11   * @returns {Object} Returns the map cache instance.
12   */
13  function mapCacheSet(key, value) {
14    var data = getMapData(this, key),
15        size = data.size;
16  
17    data.set(key, value);
18    this.size += data.size == size ? 0 : 1;
19    return this;
20  }
21  
22  module.exports = mapCacheSet;