DataStore namespace ​

League Client does not store user data on disk, similar to incognito mode in web browsers. This namespace helps you to store user data on disk.

DataStore.set(key, value) ​

Call this function to store your data with a given key.

Parameters:

• key (required) Keys should be string or number.
• value (required) Value may be string, number, boolean, null or collection like array and object. Actually, it will be stored as JSON format, so any value like function and runtime object are ignored.

Returns:

• A boolean value that indicates your key is valid and the data is stored successfully.

Example:

let my_num = 10
let my_str = 'hello'
DataStore.set('my_num', my_num)
DataStore.set('my_str', my_str)

DataStore.get(key, fallback?) ​

Retrieve your stored data with a given key. If the key does not exist, it will return undefined.

Example:

console.log(DataStore.get('my_str'))
// some string
console.log(DataStore.get('key-does-not-exist'))
// undefined

Since v1.0.5, you can set fallback value for non-existent keys.

console.log(DataStore.get('key-does-not-exist', 1000))
// 1000

DataStore.has(key) ​

This function returns a boolean indicating whether data with the specified key exists or not.

console.log(DataStore.has('my_num'))
console.log(DataStore.has('key-does-not-exist'))

DataStore.remove(key) ​

This function removes the specified data from storage by key, returns true if the existing key-value pair has been removed.

Example:

DataStore.remove('some-key')
DataStore.has('some-key') // -> false