@monstermann/fn/dist/array/reject.js

A utility library for TypeScript.

import { addRange, createRange, hasRange, spliceRange } from "./internals/range.js";
import { dfdlT } from "@monstermann/dfdl";
import { cloneArray } from "@monstermann/remmi";

//#region src/array/reject.ts
/**
* `reject(array, predicate)`
*
* Returns a new array with elements from `array` that do not satisfy the provided `predicate` function.
*
* ```ts
* reject([1, 2, 3, 4, 5], (x) => x % 2 === 0); // [1, 3, 5]
* ```
*
* ```ts
* pipe(
*     [1, 2, 3, 4, 5],
*     reject((x) => x % 2 === 0),
* ); // [1, 3, 5]
* ```
*/
const reject = dfdlT((target, predicate) => {
	const range = createRange();
	for (let i = 0; i < target.length; i++) if (predicate(target[i], i, target)) addRange(range, i);
	if (hasRange(range)) {
		target = cloneArray(target);
		spliceRange(target, range);
	}
	return target;
}, 2);

//#endregion
export { reject };