On Tue, Jun 18, 2013 at 11:29 PM, Domenic Denicola <[email protected]> wrote: > From: Sam Tobin-Hochstadt > > >> This is close, but not quite right. The rule is that any unbound variables >> in modules are errors. The variables may be bound by import declarations, >> or by lexical bindings such as `var` or `let`, or by bindings on the global >> object, or by top-level `let` bindings (which are not on the global object, >> IIRC). > > Is this correct then?
Yes, the below is all correct. Sam > > ```js > Date.now(); > ``` > > is checked at compile time and found to be OK, because it is referencing a > binding that is a property of the global object that exists at the time of > static-checking. But > > ```js > setTimeout(() => > asdf(); // (A) > }, 5000); > > setTimeout(() => > window.asdf = () =>; // (B) > }, 1000); > ``` > > is checked at compile time and found to *error*, because (A) is referencing a > binding that is a not a property of the global object at the time of static > checking? (Assuming an `asdf` binding is not introduced through any of the > other mechanisms you mention.) And this is true even though (B) adds such a > property to the global object before (A) ever runs? _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
