Question

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Do var fn = function() {…} and var fn = function foo() {…} ever differ?

From here

What is the difference between a function expression vs declaration in JavaScript?

I understand that there is a difference between declaring functions and declaring them as variables.

But It’s not clear if there is any difference between:

var func_name = function(param, param1){...};

and:

var func_name = function func_name(param, param1){...};

Are they exactly identical?

Answer 1

I’m pretty sure that’s only used to make debugging easier.

It appears that named functions make for a much more pleasant debugging experience. When debugging an application, having a call stack with descriptive items makes a huge difference.