cache.exists
Returns whether or not an item currently exists in cache.
Input Parameters
| Name | Type | Required | Description |
|---|---|---|---|
| key | Text | Yes | Unique item identifier |
Returns
Type: Boolean
Returns true if item exists in cache. Otherwise, false is returned.
Examples
// check if score value is cached
if (cache.exists("score") === true)
debug.log("Item exists.");
Remarks
Use this function when you need to test if an item already exists in cache memory.
Definition
Cache is a programming term referring to a simple database of information. A cache is a collection of associated key-value pairs. The key must be a unique identifier and the value is any object you want to store. Once stored, you can retrieve these objects using their keys.