isIOS

1/**
2 * Checks if the current platform is iOS.
3 *
4 * @returns True if running on iOS, false otherwise.
5 */
6export function isIOS(): boolean {
7  if (typeof navigator === 'undefined' || typeof window === 'undefined') {
8    return false;
9  }
10
11  return /iPad|iPhone|iPod/.test(navigator.userAgent) ||
12         (navigator.userAgent.includes('Mac') && 'ontouchend' in document);
13}

1const originalUserAgent = navigator.userAgent;
2const originalTouchSupport = 'ontouchend' in document;
3
4afterEach(() => {
5  Object.defineProperty(navigator, 'userAgent', {
6    value: originalUserAgent,
7    configurable: true,
8  });
9});
10
11test('returns true for iPhone user agent', () => {
12  Object.defineProperty(navigator, 'userAgent', {
13    value: 'Mozilla/5.0 (iPhone; CPU iPhone OS 14_0 like Mac OS X)',
14    configurable: true,
15  });
16  expect(isIOS()).toBe(true);
17});
18
19test('returns true for iPad user agent', () => {
20  Object.defineProperty(navigator, 'userAgent', {
21    value: 'Mozilla/5.0 (iPad; CPU OS 14_0 like Mac OS X)',
22    configurable: true,
23  });
24  expect(isIOS()).toBe(true);
25});
26
27test('returns false for Android user agent', () => {
28  Object.defineProperty(navigator, 'userAgent', {
29    value: 'Mozilla/5.0 (Linux; Android 10; SM-G970F)',
30    configurable: true,
31  });
32  expect(isIOS()).toBe(false);
33});
34
35test('returns false when navigator or window is undefined', () => {
36  const tempWindow = globalThis.window;
37  const tempNavigator = globalThis.navigator;
38
39  // Simulate non-browser environment
40  delete (globalThis as any).window;
41  delete (globalThis as any).navigator;
42
43  expect(isIOS()).toBe(false);
44
45  // Restore environment
46  (globalThis as any).window = tempWindow;
47  (globalThis as any).navigator = tempNavigator;
48});