| /** | |
|  * Checks if a `cache` value for `key` exists. | |
|  * | |
|  * @private | |
|  * @param {Object} cache The cache to query. | |
|  * @param {string} key The key of the entry to check. | |
|  * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. | |
|  */ | |
| function cacheHas(cache, key) { | |
|   return cache.has(key); | |
| } | |
| 
 | |
| module.exports = cacheHas;
 |