slugToTitle

1/**
2 * Converts a slug (kebab-case or snake_case) to a human-readable title.
3 *
4 * @param str - The slug string to convert.
5 * @returns The title-cased string.
6 *
7 * @example
8 * slugToTitle('my-example-slug') => 'My Example Slug'
9 */
10export function slugToTitle(str: string): string {
11  return str
12    .replace(/[-_]+/g, ' ')
13    .replace(/\b\w/g, char => char.toUpperCase());
14}

1test('slugToTitle - kebab-case', () => {
2  expect(slugToTitle('my-example-slug')).toBe('My Example Slug');
3});
4
5test('slugToTitle - snake_case', () => {
6  expect(slugToTitle('my_example_slug')).toBe('My Example Slug');
7});
8
9test('slugToTitle - mixed separators', () => {
10  expect(slugToTitle('my-slug_example')).toBe('My Slug Example');
11});
12
13test('slugToTitle - single word', () => {
14  expect(slugToTitle('hello')).toBe('Hello');
15});
16
17test('slugToTitle - empty string', () => {
18  expect(slugToTitle('')).toBe('');
19});