_listCacheGet.js
 1  var assocIndexOf = require('./_assocIndexOf');
 2  
 3  /**
 4   * Gets the list cache value for `key`.
 5   *
 6   * @private
 7   * @name get
 8   * @memberOf ListCache
 9   * @param {string} key The key of the value to get.
10   * @returns {*} Returns the entry value.
11   */
12  function listCacheGet(key) {
13    var data = this.__data__,
14        index = assocIndexOf(data, key);
15  
16    return index < 0 ? undefined : data[index][1];
17  }
18  
19  module.exports = listCacheGet;