Function groupBy

groupBy<T, K extends string | number | symbol>(
array: T[],
keyFn: (item: T, index: number) => K,
): Record<K, T[]>
Group array elements by key returned from keyFn
Type Parameters
- T
- K extends string | number | symbol
Parameters
- array: T[]
  Array of items
- keyFn: (item: T, index: number) => K
  Function returning key to group by
Returns Record<K, T[]>
Object grouped by keys
- Defined in src/general/groupBy.ts:8