i had a cljs repl up and running...here's the comparison and the emitted JS
ClojureScript:cljs.user> (= 0 0 0)
true
; js => cljs.core._EQ_.call(null,0,0,0);
ClojureScript:cljs.user> (= 0 0 1)
true
; js => cljs.core._EQ_.call(null,0,0,1);
ClojureScript:cljs.user> (== 0 0 1)
false
; js => (function (){var and__3546__auto____4873 = (0 === 0);
if(cljs.core.truth_(and__3546__auto____4873))
{return (0 === 1);
} else
{return and__3546__auto____4873;
}
})();
ClojureScript:cljs.user> (== 0 0 0)
true
; js => (function (){var and__3546__auto____4879 = (0 === 0);
if(cljs.core.truth_(and__3546__auto____4879))
{return (0 === 0);
} else
{return and__3546__auto____4879;
}
})();
So...looks like it's just = vs == (or even ===)
Neale
{t: @sw1nn, w: sw1nn.com}
On Wed, Feb 29, 2012 at 11:26 PM, Alan Malloy <a...@malloys.org> wrote:
>
> On Feb 29, 2:36 pm, Benjamin Peter <benjaminpe...@arcor.de> wrote:
> > Hello,
> >
> > when I was trying to port a little clojure app to clojurescript I
> > think I noticed a difference in behavior of the "for" macro.
> >
> > I am quite new to clojure and maybe you can tell me where my problem
> > is or if my assumptions that there might be a problem could be
> > correct.
> >
> > As far as I see it, the "for" macro works for clojurescript quite well
> > but I am not sure if it is "supported".
> >
> > I am using a two dimensional "for" with a ":when" condition. I already
> > tried to narrow the problem down but this was the closest I could get
> > so far. It seems like some elements are missing in the output.
> >
> > (for [a [0 1] b [0 1]
> > :when (not (= 0 a b))]
> > [a b])
> >
> > In clojurescript seems to result in:
> >
> > [[1 0] [1 1]]
> >
> > Wrapping to doall doesn't change a thing, but could lazyness be a
> > problem?
> >
> > I put together a little project you could check out, please have a
> > look:
> >
> > https://github.com/dedeibel/cljs-fortest
>
> Isn't this a special case of cljs not having the right equality
> semantics for multiple args? I don't have a clojurescript repl handy,
> but I remember reading it only looks at the first two args, so (= 0 0
> 1) returns true, keeping that one out of your results.
>
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