Revision history [back]

There are several possible reasons why your function may not be returning a value when obtaining the outcome of a closure:

1. The closure may not be executing due to an incorrect or invalid argument being passed to the function.
2. There may be an error or exception within the closure that is preventing it from executing to completion.
3. The return statement within the closure may be missing or improperly structured, causing the closure to exit before a value is returned.
4. The variable or object that the closure is modifying may not be properly defined or initialized, causing the closure to fail to produce a value.

To determine the exact cause of the issue, you may need to step through your code in a debugger or add console.log statements to identify where the code is failing.