[removed] How is “function onload() {}” different from “onload = function() {}”?

Question

In the answers to this question, we read that function f() {} defines the name locally, while [var] f = function() {} defines it globally. That makes p

Answer 1

The simplest explanation:

function aaaaaaa(){

Can be used before it is declarated:

aaaaaaa();
function aaaaaaa(){

}

But this doesn't work:

aaaaaaa();
aaaaaaa=function(){

}

That's because in the third code, you are assigning aaaaaaa to an anonymous function, not declaring it as a function.