On Nov 4, 2010, at 12:18 PM, Brendan Eich wrote: > On Nov 4, 2010, at 12:00 PM, Peter van der Zee wrote: > >> I guess my confusion came from the notion that catch gets its own scope and >> thinking variables in catch statements wouldn't get hoisted until the code in >> that "scope" was entered. Thanks :) > > catch did prefigure let -- lexical scope in ES3 from 1999, but only for > catch. Finally we get it everywhere in Harmon, at the price of new syntax.
I'm being too kind to ES3. It aspired to make the catch var lexical and block-scoped, but it was terribly specified: it used a new Object for the scope frame, and bound the catch variable via [[Put]], if I recall correctly. Fixed in real world implementations to avoid object-based scoping, and codified in ES5. /be _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
