Yep, thanks, I aware about FSs. For the complete and detailed
explanation you may check "ES3. Ch5. Functions."
http://dmitrysoshnikov.com/ecmascript/chapter-5-functions/ (where all
this stuff -- FD, FE, NFE, FS, etc is discussed in detail).
FYI: ES6 (Harmony) will standardize FSs. So currently the advice to
avoid them (throw in ES5 strict) seems a bit confusing, taking into
account that ES6 will be based on strict ES5. One could think that FSs
should be banned also in ES6 -- but no, they will be standardize.
Currently FSs extension implemented in most implementations. Firefox's
way seems quite logical and exactly this way is chosen for ES6. Other
implementations just create FD as mentioned.
BESEN implementation doesn't support FS though.
P.S.: the article is mostly academical and explains the theoretical and
practical rationale (and reasons) of the "hoisting" concept. Exact FSs
behavior is a bit irrelevant here. Though, if to consider exactly JS
engines implementations, yes, FSs can be hoisted as simple FDs in all
implementations except Firefox.
Dmitry.
On 08.02.2011 0:18, DaveC wrote:
I think it worth a further nod wrt function statements inside of a
block statement.
ECMAScript allows syntactic extensions, one such extension is to allow
function statements inside of a block statement currently Mozilla is
the only vendor (*I think*) that has added this extension - so I would
advise against it's use as the behaviour it will inconsistent across
browsers.
See this explanation on clj http://bit.ly/eu5rqw
Cheers,
Dave
On Feb 7, 7:53 pm, "Dmitry A. Soshnikov"<[email protected]>
wrote:
Thanks, Jose!
On 07.02.2011 22:39, Jose Antonio Perez wrote:
Great article Dmitry!
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