Lasse Reichstein:
> On Thu, Oct 6, 2011 at 2:17 PM, Fyodorov "bga" Alexander <
> [email protected]> wrote:
>
> >
> > 1) convert your code to
> > {
> > const singletonObject = (function(){
> > // helper fns
> >
> > return {
> > // privare members
> > newsItems_: [],
> >
> > _init: function(){
> > // your object init here
> > delete this._init // prevent double init
> >
>
> I recommend against using delete in objects that are not used as
> dictionaries. In modern Javascript engines, this might throw off the "hidden
> class" optimizations for the object and make it it slower
>
> Just have the init function next to the object and call it as:
> return init.call({...my object literal...});
> for the same effect - or just inline the code in the anonymous function
> instead of introducing an extra initialization function. After all, the
> anonymous function's job is to create that object.
>
> return this
> > },
> >
> > // methods
> > getFilters: function(){
> >
> > }
> > }._init()
> > })()
> > }
> >
>
> ...
>
>
> > 5) you can forget about semicolon
> >
>
> No, please don't. It doesn't make code more readable, and it can make
> introduce subtle bugs if you don't know when semicolon is needed.
>
> /L
reason why many js coders still use ; is because they use other old
langs such as c++/java. New langs such as Go and Scala dont requires ;
because in most cases \n is ;. Imho ; is history of programming langs.
ASI rules is so simple. Just dont write {return\n}, {throw\n} and
{_foo()\n()} but who really write this code? Its abnormal code. Since
i use only modern langs i can forget about ; completely, its just
syntax noise and force me type more. I type ; only one line lambdas to
have explicit separator for my eyes. If i need write on some old lang
- i can make small script which emulate ASI for this lang.
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