Clarify:
My previous post was not that clear. That post display what I would like to do
in the language. Here is the actual code if I choose to do it as the language
is now:
var i = 0, n = 5;
l2: do {
i += 1;
l3: do {
if (i<n) continue l2;
else break l3;
} while (true);
break l2;
} while (true);
//just log the value n+1:
console.log('i:'+i);
loop through label l2 n amount of times before breaking.
This could be useful to escape function invocation cost, if it could be simply
express:
l2: {
i += 1;
}
l3: {
if (i<n) continue l2;
}
The function way is to:
function l2(){
i += 1;
}
l3: do {
if (i<n) l2();
else break l3;
} while (true);
I did a <a href="http://jsperf.com/block-scope-vs-function-invocation";>
jsprf </a>to further my argument for a sudo goto/function effect:
http://jsperf.com/block-scope-vs-function-invocation
JS4Lf
> On May 19, 2015, at 2:45 PM, L4L <[email protected]> wrote:
>
> Since we have block scope, and we have continue statement to which we can use
> in loops to jump back to the conduction statement part.
>
> Than can we consider making label stamens moveable by its name.
>
> I'll like to say that the side effect would be sudo(pseudo) function, example:
>
> function foo(v){
> return v + 1;
> }
>
>
> var i = 0;
>
> baz:{
> i += 1;
> }
>
> continue baz;//same as foo(i);
>
> console.log(i);
>
> Note that I said sudo function. Its mobility is what of value; depending on
> how JavaScript handle the continue statement in a loop to transport that
> effect out side a loop.
>
> Stripping this privilege to black scope; where the continue statement is
> expanded to work only in block scope and nested block scope; to where it can
> only jump to the beginning of that block or any other block scope that is
> scoped to that outer block scope but not nested block scope with in the
> scope... Like function.
>
> Continue and break statement could be of more power; where we can avoid some
> function call in "speed matter" application.
>
> Excuse any grammar errors.
>
> JS4Lf
> _______________________________________________
> es-discuss mailing list
> [email protected]
> https://mail.mozilla.org/listinfo/es-discuss
_______________________________________________
es-discuss mailing list
[email protected]
https://mail.mozilla.org/listinfo/es-discuss
