The reason why all declarations happen at the top of the current function body, instead of inline with the first assignment is because in JavaScript assignment is a statement, not an expression. You can't do this:
alert(var one = 2);
In CoffeeScript, (nearly) everything is an expression. So you need to be able to do this:
alert one = 2
By pushing up all the var declarations, all assignments can be themselves assigned, returned, or passed as arguments to function calls directly.
Aren't local variables scoped to be visible within the entire JavaScript function? I thought the recommendation to declare local variables at the top the function was a reminder (or to avoid accidental importing of global variables of the same name)?
