1 var nativeCreate = require('./_nativeCreate');
3 /** Used for built-in method references. */
4 var objectProto = Object.prototype;
6 /** Used to check objects for own properties. */
7 var hasOwnProperty = objectProto.hasOwnProperty;
10 * Checks if a hash value for `key` exists.
15 * @param {string} key The key of the entry to check.
16 * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
18 function hashHas(key) {
19 var data = this.__data__;
20 return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);
23 module.exports = hashHas;