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JavaScript Date Formatting — exercises and bug fixes

5 hands-on exercises and 5 find-the-bug challenges for the JavaScript Date Formatting 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

    Format for British readers

    easy10 min

    Format the date in the British order.

  2. 2

    Format for American readers

    easy10 min

    Format the same date in the American order.

  3. 3

    Use a long month name

    easy10 min

    Show the date with the month spelled out.

  4. 4

    Get the ISO date

    easy10 min

    Report just the date part of the ISO string.

  5. 5

    Reuse a formatter

    medium10 min

    Build one Intl formatter and format a date with it.

Find the bug(5)

  1. 1

    Fix the date built by hand

    easy8 min

    Joining the parts gets the order and padding wrong.

  2. 2

    Fix the wrong locale

    easy8 min

    The British order puts the day first.

  3. 3

    Fix the ISO string shown in full

    easy8 min

    Only the date part is wanted, not the time as well.

  4. 4

    Fix the short month wanted long

    easy8 min

    The option should spell the month out.

  5. 5

    Fix the missing timeZone option

    easy8 min

    Without it the result depends on where the code runs.

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