Variable counting`Const`

counting: <T, TId extends string | number | symbol>(
list: readonly T[],
identity: (item: T) => TId,
) => Record<TId, number>

Type declaration

- <T, TId extends string | number | symbol>(
  list: readonly T[],
  identity: (item: T) => TId,
  ): Record<TId, number>
- Type Parameters
  - T
  - TId extends string | number | symbol
  Parameters
  - list: readonly T[]
  - identity: (item: T) => TId
  Returns Record<TId, number>