@monstermann/fn/dist/map/has.js

A utility library for TypeScript.

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

//#region src/map/has.ts
/**
* `has(map, key)`
*
* Checks if `map` contains the specified `key`.
*
* ```ts
* has(
*     new Map([
*         ["a", 1],
*         ["b", 2],
*     ]),
*     "a",
* ); // true
*
* has(
*     new Map([
*         ["a", 1],
*         ["b", 2],
*     ]),
*     "c",
* ); // false
* ```
*
* ```ts
* pipe(
*     new Map([
*         ["a", 1],
*         ["b", 2],
*     ]),
*     has("a"),
* ); // true
*
* pipe(
*     new Map([
*         ["a", 1],
*         ["b", 2],
*     ]),
*     has("c"),
* ); // false
* ```
*/
const has = dfdlT((target, key) => {
	return target.has(key);
}, 2);

//#endregion
export { has };