remove

function Map.remove<K, V>(
    target: ReadonlyMap<K, V>,
    key: NoInfer<K>,
): ReadonlyMap<K, V>

Removes the specified key from the map. Returns the original map if the key doesn't exist.

Example

data-first

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

Map.remove(
    new Map([
        ["a", 1],
        ["b", 2],
    ]),
    "a",
); // Map(1) { "b" => 2 }

Map.remove(
    new Map([
        ["a", 1],
        ["b", 2],
    ]),
    "c",
); // Map(2) { "a" => 1, "b" => 2 }

data-last

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

pipe(
    new Map([
        ["a", 1],
        ["b", 2],
    ]),
    Map.remove("a"),
); // Map(1) { "b" => 2 }

pipe(
    new Map([
        ["a", 1],
        ["b", 2],
    ]),
    Map.remove("c"),
); // Map(2) { "a" => 1, "b" => 2 }