@monstermann/fn/dist/set/compact.js

A utility library for TypeScript.

import { dfdlT } from "@monstermann/dfdl";
import { cloneSet } from "@monstermann/remmi";

//#region src/set/compact.ts
/**
* `compact(target)`
*
* Removes all nullable values (`null` and `undefined`) from the `target` set and returns a new set.
*
* ```ts
* compact(new Set([1, null, 2, undefined])); // Set([1, 2])
* compact(new Set([1, 2, 3])); // Set([1, 2, 3])
* ```
*
* ```ts
* pipe(new Set([1, null, 2, undefined]), compact()); // Set([1, 2])
* pipe(new Set([1, 2, 3]), compact()); // Set([1, 2, 3])
* ```
*/
const compact = dfdlT((target) => {
	if (!target.has(null) && !target.has(void 0)) return target;
	target = cloneSet(target);
	target.delete(null);
	target.delete(void 0);
	return target;
}, 1);

//#endregion
export { compact };