Welshman Docs / @welshman/lib / indexBy

Function: indexBy()

indexBy<T, K>(f, xs): Map<K, T>

Defined in: packages/lib/src/Tools.ts:637

Creates map from array using key function

Type Parameters

T

T

K

K

Parameters

f

(x) => K

Function to generate key

xs

T[]

Array to index

Returns

Map<K, T>

Map of values by key