core3-utils

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groupBy() function

Groups elements by the value of a property

Signature:

export declare function groupBy<T, K extends keyof T>(elements: Iterable<T>, property: K): Map<T[K], T[]>;

Parameters

Parameter	Type	Description
elements	Iterable<T>
property	K

Returns:

Map<T[K], T[]>

A map of the value to an array of elements

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