objectGroupBy

A polyfill for the Object.groupBy() static method.

function objectGroupBy<K extends PropertyKey, T>(items: Iterable<T>, keySelector: (item: T, index: number) => K): Partial<Record<K, T[]>>;

objectGroupBy<K extends PropertyKey, T>(items: Iterable<T>, keySelector: (item: T, index: number) => K): Partial<Record<K, T[]>>

K extends PropertyKey

items: Iterable<T>

keySelector: (item: T, index: number) => K

Partial<Record<K, T[]>>