addOr

function Set.addOr(target, value, or)

Example

data-first

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

Set.addOr(Set.create([1, 2]), 3, null); // Set([1, 2, 3])
Set.addOr(Set.create([1, 2]), 2, null); // null

data-last

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

pipe(Set.create([1, 2]), Set.addOr(3, null)); // Set([1, 2, 3])
pipe(Set.create([1, 2]), Set.addOr(2, null)); // null