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JavaScript export — exercises and bug fixes

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

    Export two named values

    easy10 min

    Simulate a module exporting a function and a constant.

  2. 2

    Export a default value

    easy10 min

    Simulate a default export and use it.

  3. 3

    Export a renamed value

    easy10 min

    Export a function under a different public name.

  4. 4

    Export a list of functions

    easy10 min

    Export two already-declared functions together.

  5. 5

    Combine named and default

    medium10 min

    Export both a default and a named value from the same module.

Find the bug(5)

  1. 1

    Fix the export left off the object

    easy8 min

    The function was declared but never added to the exports.

  2. 2

    Fix the default read as a named export

    easy8 min

    The default export is read from the default key, not by its function name.

  3. 3

    Fix the wrong name exported

    easy8 min

    The export list uses the wrong key for the renamed function.

  4. 4

    Fix only one function exported

    easy8 min

    Both functions were meant to be exported, not just one.

  5. 5

    Fix the default overwritten by a named export

    easy8 min

    The named export used the same key as the default, replacing it.

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