Is there a performance decrease from not specifying the this word in a AS3 file?

I know there are performance loses if开发者_StackOverflow社区 you don't specify variable types explicitly. Do ActionScript/Java developer in general prefer the use of the in classes or no?

public function hello():void
{
   this.speaker.says("hello");
}

vs

speaker.says("hello")

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There is no performance difference, it's just down to a matter of personal preference.

I prefer to use this.foo, personally. I sense I'm in the minority.

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Just use the shorter form, there are no performance differences and the shorter form is generally preferred.

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The only time it's really useful to use this in AS3 could be, for example in a constructor where there may be some ambiguity between the method params and the instance params:

private var foo:String;
private var bar:String;

myClass( foo:String, bar:String ) {
    this.foo = foo;
    this.bar = bar;
} 

But there is an issue of whether that is good programming style anyway.