isSubsetOf

function Set.isSubsetOf<T>(
    target: ReadonlySet<T>,
    source: ReadonlySet<NoInfer<T>>,
): boolean

Returns true if all values in the target set are also in the source set, false otherwise.

Example

data-first

import { Set } from "@monstermann/set";

Set.isSubsetOf(Set.create([1, 2]), Set.create([1, 2, 3])); // true
Set.isSubsetOf(Set.create([1, 4]), Set.create([1, 2, 3])); // false

data-last

import { Set } from "@monstermann/set";

pipe(Set.create([1, 2]), Set.isSubsetOf(Set.create([1, 2, 3]))); // true
pipe(Set.create([1, 4]), Set.isSubsetOf(Set.create([1, 2, 3]))); // false