return false the same as return?
Solution 1:
No.
var i = (function() { return; })();
i === undefined which means that i == false && i == '' && i == null && i == 0 && !i
var j = (function() { return false; })();
j === false which means that j == false && j == '' && j == null && j == 0 && !j
Weak operators in JS make it seem like the might return the same thing, but they return objects of different types.
Solution 2:
No, return; is the same as return undefined;, which is the same as having a function with no return statement at all.