codex-lv3-may-2025

Level Navigation: 1

(2ℹ️)

3

4

5

6

(7ℹ️)

(8ℹ️)

(9ℹ️)

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

(37ℹ️)

38⚡

39⚡

40⚡

41⚡

42

43⚡

44⚡

45

46

(47ℹ️)

Level 21: Testing Numbers in Text

What if the text contains numbers?

Plan: confirm digits survive conversion by checking toSnakeCase('Hello 123 World') preserves 123 between underscores.

Show Me

it('should handle numbers in text', () => {
  const result = toSnakeCase('Hello 123 World');
  expect(result).toBe('hello_123_world');
});

Try it: Add this test and see how numbers are handled!

---