stripHTMLTags

1/**
2 * Removes all HTML tags from a string.
3 * Useful for sanitizing content or extracting plain text.
4 *
5 * @param str - The input string containing HTML.
6 * @returns A string with all HTML tags removed.
7 */
8export function stripHTMLTags(str: string): string {
9  return str.replace(/<[^>]*>/g, '');
10}

1test('stripHTMLTags - removes simple HTML tags', () => {
2  expect(stripHTMLTags('<p>Hello <strong>world</strong></p>')).toBe('Hello world');
3});
4
5test('stripHTMLTags - handles nested tags', () => {
6  expect(stripHTMLTags('<div><span>Text</span></div>')).toBe('Text');
7});
8
9test('stripHTMLTags - leaves plain text untouched', () => {
10  expect(stripHTMLTags('Just text')).toBe('Just text');
11});
12
13test('stripHTMLTags - works with self-closing tags', () => {
14  expect(stripHTMLTags('<br/>Line<br/>')).toBe('Line');
15});
16
17test('stripHTMLTags - works with attributes and mixed content', () => {
18  expect(stripHTMLTags('<a href="#">Link</a> &copy; <span class="note">2025</span>'))
19    .toBe('Link &copy; 2025');
20});
21
22test('stripHTMLTags - handles empty string', () => {
23  expect(stripHTMLTags('')).toBe('');
24});