normalizeNumber

1/**
2 * Normalizes a number within a given range to a value between 0 and 1.
3 *
4 * @param value - The input number.
5 * @param min - The minimum value of the range.
6 * @param max - The maximum value of the range.
7 * @returns A normalized number between 0 and 1.
8 */
9export function normalizeNumber(value: number, min: number, max: number): number {
10  if (min === max) return 0;
11  return (value - min) / (max - min);
12}

1test('normalizeNumber - within range', () => {
2  expect(normalizeNumber(75, 50, 100)).toBe(0.5);
3});
4
5test('normalizeNumber - min boundary', () => {
6  expect(normalizeNumber(0, 0, 100)).toBe(0);
7});
8
9test('normalizeNumber - max boundary', () => {
10  expect(normalizeNumber(100, 0, 100)).toBe(1);
11});
12
13test('normalizeNumber - below range', () => {
14  expect(normalizeNumber(-50, 0, 100)).toBe(-0.5);
15});
16
17test('normalizeNumber - above range', () => {
18  expect(normalizeNumber(150, 0, 100)).toBe(1.5);
19});
20
21test('normalizeNumber - zero range', () => {
22  expect(normalizeNumber(5, 5, 5)).toBe(0);
23});