JavaScript catch parameter already defined

Question

I\'m trying to understand why I\'m getting the following error, not how to work around it.

Passing the following code to JSLint or JSHint yields the er

Answer 1

You can have a problem with reusing the same parameter name in sequential try-catches if you later need to refer to the error.

If more than one catch was called, only the last one will be in scope for a finally or function scope expression.

jsLint is conservative- if you can prevent a possible screw up with a unique variable, why not use it?