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Discussion on: JavaScript Callbacks Explained in 5 Minutes

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Replies for: This is a great clarification. I can't think of a reasonable scenario where you would pass a function without the expectation that it's going to be...

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Jon Randy 🎖️ • • Edited

A few random possibilities off the top of my head:

  • A function to wrap another function and return the wrapped version (debounce springs to mind)
  • A function to compose one or more functions, and return the new one.
  • A function to return the arity of the passed function
  • A function to display the source of the passed function