1/**
2 * Checks if a stack value for `key` exists.
3 *
4 * @private
5 * @name has
6 * @memberOf Stack
7 * @param {string} key The key of the entry to check.
8 * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
9 */
10function stackHas(key) {
11  return this.__data__.has(key);
12}
13
14module.exports = stackHas;
15