isOdd

1/**
2 * Checks if a number is odd.
3 *
4 * @param num - The number to check.
5 * @returns True if the number is odd, otherwise false.
6 */
7export function isOdd(num: number): boolean {
8  return num % 2 !== 0;
9}

1test('isOdd - positive odd number', () => {
2  expect(isOdd(5)).toBe(true);
3});
4
5test('isOdd - positive even number', () => {
6  expect(isOdd(6)).toBe(false);
7});
8
9test('isOdd - zero is not odd', () => {
10  expect(isOdd(0)).toBe(false);
11});
12
13test('isOdd - negative odd number', () => {
14  expect(isOdd(-3)).toBe(true);
15});
16
17test('isOdd - negative even number', () => {
18  expect(isOdd(-4)).toBe(false);
19});
20
21test('isOdd - float number', () => {
22  expect(isOdd(3.1)).toBe(true);
23});