I think it should be best practice to name immediately invoked functions (often anonymous), here's why...

name_your_anonymous_functions.js

// Execute this and look at your console errors.
// this ...
(function __I_HAVE_A_NAME_NOW__ () {

	// deliberate error
	catchMeIfYouCan();
	
})();

// ... debugs far better this anonymous function

(function /* __I_HAVE_A_NAME_NOW__ */ () {

	// deliberate error
	catchMeIfYouCan();
	
})();