MultiMapNonEmpty | /multimap/custom/index.ts | rimbu@0.13.1

Module

x/rimbu/multimap/custom/index.ts>MultiMapNonEmpty#modifyAt

Rimbu is a TypeScript library focused on immutable, performant, and type-safe collections and other tools.

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implementation interface

index.ts (default module)

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method MultiMapNonEmpty.prototype.modifyAt

import { MultiMapNonEmpty } from "https://deno.land/x/rimbu@0.13.1/multimap/custom/index.ts";

modifyAt(atKey: K, options: { ifNew?: OptLazy<StreamSource<V>>; ifExists?: (currentValues: TpG["keyMapValuesNonEmpty"]) => StreamSource<V>; }): TpG["normal"]

Parameters

atKey: K

options: { ifNew?: OptLazy<StreamSource<V>>; ifExists?: (currentValues: TpG["keyMapValuesNonEmpty"]) => StreamSource<V>; }

Returns

TpG["normal"]