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@nlozgachev/pipekit

groupBy

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

Defined in: Core/Arr.ts:172

Groups elements by a key function.

Type Parameters

Section titled “Type Parameters”

A

Section titled “A”

A

Parameters

Section titled “Parameters”

f

Section titled “f”

(a) => string

Returns

Section titled “Returns”

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

Parameters

Section titled “Parameters”

data

Section titled “data”

readonly A[]

Returns

Section titled “Returns”

Record<string, NonEmptyList<A>>

Example

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