mapEach

function Map.mapEach<K, V, U>(
    target: ReadonlyMap<K, V>,
    fn: (
        value: NoInfer<V>,
        key: NoInfer<K>,
        target: ReadonlyMap<K, V>,
    ) => U,
): ReadonlyMap<K, U>

Transforms all values in the map using the provided function.

Example

data-first

import { Map } from "@monstermann/map";

Map.mapEach(
    new Map([
        ["a", 1],
        ["b", 2],
    ]),
    (value, key) => value * 2,
); // Map(2) { "a" => 2, "b" => 4 }

data-last

import { Map } from "@monstermann/map";

pipe(
    new Map([
        ["a", 1],
        ["b", 2],
    ]),
    Map.mapEach((value, key) => value * 2),
); // Map(2) { "a" => 2, "b" => 4 }