Error in Javascript Iterator Practice Pack - typo

Summary of the report:
In the practice pack for iterators, on a question about higher-order functions (Q: Examine the included Javascript codeblock. Which of the functions represents a ‘higher-order function’?) the correct answer is incorrectly typed, so that it isn’t actually a correct answer. It is typed as getFunctionLength() (not a possible answer) and it should be getFunctionString(). Screenshot included.

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Fix or Workaround:
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