What should be the output of the following code?
(function(){
try {
throw "hi";
} catch (e) {
var e = "ho";
var o = "hu";
var u;
console.log(e);
}
console.log(e,u,o);
}());
It seems clear that the first console.log should output 'ho'.
Implementations seem to disagree on the second console.log,
though.
From my current understanding of the spec, I expected:
undefined undefined 'hu'
which I consider unfortunate; especially the first 'undefined'
was intended to demonstrate the bad effects of separating
declaration from initialization while treating catch and function
differently, in terms of scoping.
node, opera: undefined undefined 'hu'
firefox 12 complains: 'e is not defined'
ie 9 outputs: houndefinedhu
It looks as if firefox misses the hoisted declaration of 'e'
(it doesn't complain about 'u', only about 'e') while ie9
somehow merges the declaration and the catch parameter.
Claus
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