Hi,
>> What is the point of initializing properties if there is a guarantee that
>> they'll be initialized in other code before it is ever tested. Code like:
>>
>> var foo:String;
>> if (someCondition)
>> foo = "bar";
>> else
>> foo = "foo”;
>
> Could be optimised away by the compiler.
And looks like this is currently likely.
For instance this code:
test = function() {
var foo = 'hello';
var cond = true;
if (cond)
foo = 'bar';
else
foo = 'foo';
console.log(foo);
}
test();
Gets optimised to:
test=function(){console.log("bar")};test();
So there’s no cost in this case for the initial assignment and the variable
doesn’t even exists in the final result. In more complex code you’ll probably
get something different.
Thanks,
Justin
