src/isEven.js

zzmq.dev@gmail.com/mathkit / src / isEven.js @ 9271926f Download

Ladder Summary

file This file contains an exported function `isEven` which determines whether a given integer is even. It also includes test cases to verify the correctness of this function.

import { test } from "node:test";
import assert from "node:assert/strict";

export function isEven(n) {
  return n % 2 === 0;
}

test("isEven", () => {
  assert.strictEqual(isEven(1), false);
  assert.strictEqual(isEven(2), true);
  assert.strictEqual(isEven(-1), false);
  assert.strictEqual(isEven(0), true);
});