I think that what he meant is that we know for sure in which scope we can find
the property/variable. That the propery exists or not in the that scope is
another issue.
So, in the code “function getOoops(t) { t(); return function() { return ooops;
} }” we know statically that the scope where
On Oct 3, 2012, at 10:05 AM, François REMY wrote:
In non-strict ES, the “t” function may be eval, and eval could add a “oops”
variable in the parent function getOoops.
I don't believe this is true. This does not constitute a direct call to eval
(15.1.2.1.1), and as such the eval will take
Indirect eval is something introduced for ES5 Strict only, I believe. Try
the following code in your browser’s console, and you may be surprised:
((function(t) { t(var body=true); return function() { return
body; }; })(eval))())
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es-discuss
On Oct 3, 2012, at 12:40 PM, François REMY wrote:
Indirect eval is something introduced for ES5 Strict only, I believe.
Nope. See 15.1.2.1.1, no reference to strict.
Here's a better example:
(function(t){ var x = 'foo'; t(x = 'bar'); alert(x); })(eval)
The indirect eval does not
| That just puts 'body' on the window.
Indee, I'm false on that one. But if you use a direct eval, you can get the
same behavior in ES5, which is want I wanted to demonstrate:
window.a = true;
(function x(t) { eval(t); return a==window.a; })(var a=false)
So in plain ES5, the scope of
On Wed, Oct 3, 2012 at 10:05 AM, François REMY fremycompany_...@yahoo.frwrote:
I think that what he meant is that we know for sure in which scope we
can find the property/variable. That the propery exists or not in the that
scope is another issue.
So, in the code “function getOoops(t) {
On Wed, Oct 3, 2012 at 7:05 PM, François REMY fremycompany_...@yahoo.frwrote:
I think that what he meant is that we know for sure in which scope we
can find the property/variable. That the propery exists or not in the that
scope is another issue.
So, it doesn't matter that the global
On Wed, Oct 3, 2012 at 3:16 PM, Šime Vidas sime.vi...@gmail.com wrote:
On Wed, Oct 3, 2012 at 7:05 PM, François REMY
fremycompany_...@yahoo.frwrote:
I think that what he meant is that we know for sure in which scope we
can find the property/variable. That the propery exists or not in the
On Thu, Oct 4, 2012 at 12:31 AM, Mark S. Miller erig...@google.com wrote:
On Wed, Oct 3, 2012 at 3:16 PM, Šime Vidas sime.vi...@gmail.com wrote:
On Wed, Oct 3, 2012 at 7:05 PM, François REMY
fremycompany_...@yahoo.frwrote:
I think that what he meant is that we know for sure in which
You should eval an initialized var declaration of foo inside the with,
and check foo's value after the with body, for real head-exploding. ;-)
/be
Šime Vidas wrote:
Well, thank you for your excellent video. The dynamic scopes in the
default language are a disaster... I've just written a short
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