Function arraysGroupBy

arraysGroupBy<T, K>(arr: readonly T[], keyFn: (elem: T) => K): Map<K, T[]>
Groups the elements of the given array by the key returned by the given key function.
Type Parameters
- T
- K
Parameters
- arr: readonly T[]
- keyFn: (elem: T) => K
Returns Map<K, T[]>
- Defined in src/util/collections/arrays.ts:265