groupBy

groupBy<A>(f): (data) => Record<string, NonEmptyList<A>>

Defined in: Data/Arr.ts:285

Groups elements by a key function.

Type Parameters

A

A

Parameters

f

(a) => string

Returns

(data) => Record<string, NonEmptyList<A>>

Example

pipe(
  ["apple", "avocado", "banana"],
  Arr.groupBy(s => s[0])
); // { a: ["apple", "avocado"], b: ["banana"] }