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JavaScript switch Statement — exercises and bug fixes

5 hands-on exercises and 5 find-the-bug challenges for the JavaScript switch Statement lesson. Every one is checked automatically in the browser — write the code, run it, and the tests tell you what still fails.

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Exercises(5)

  1. 1

    Switch on a day

    easy10 min

    Show "start" for Monday using a switch. The day is Monday.

  2. 2

    Use the default case

    easy10 min

    An unknown colour should fall through to "unknown".

  3. 3

    Group two cases

    easy10 min

    Both "Sat" and "Sun" should show "weekend". The day is Sun.

  4. 4

    Switch on a number

    easy10 min

    Show "two" when the value is 2.

  5. 5

    Return a label from a switch

    medium10 min

    Map the status code 404 to "not found".

Find the bug(5)

  1. 1

    Fix the missing break

    easy8 min

    Without a break the next case runs and overwrites the answer.

  2. 2

    Fix the strict type mismatch

    easy8 min

    switch compares strictly, so a string never matches a number case.

  3. 3

    Fix the missing default

    easy8 min

    An unmatched value leaves the output blank.

  4. 4

    Fix the wrong case value

    easy8 min

    The case tests the wrong day, so it falls to the default.

  5. 5

    Fix the case-sensitive match

    easy8 min

    The case uses different capitalisation, so nothing matches.

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