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util: use Object.create(null) for dictionary object #3791

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util: use Object.create(null) for dictionary object #3791

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util: use Object.create(null) for dictionary object
JungMinu Nov 12, 2015
54285ca
add if val is `__proto__`
JungMinu Nov 12, 2015
c7de80b
if array contains __proto__
JungMinu Nov 12, 2015
c61e8c2
Beautify codes
JungMinu Nov 12, 2015
36ee9fe
remove unused index
JungMinu Nov 12, 2015
7fa52db
remove spaces
JungMinu Nov 12, 2015
e412b4f
util: use Object.create(null) for dictionary object
JungMinu Nov 12, 2015
56995c7
remove unused
JungMinu Nov 13, 2015
fe4cdc1
util: use Object.create(null) for dictionary object
JungMinu Nov 12, 2015
ec9f530
Merge branch 'patch-18' of https://github.com/JungMinu/node-1 into pa…
JungMinu Nov 14, 2015
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if array contains __proto__ 
if array contains __proto__, use Object.create(null)
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@JungMinu
JungMinu committed Nov 12, 2015
commit c7de80b40213cded9dae0e33ad785366ec169e0b
16 changes: 9 additions & 7 deletions lib/util.js
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Expand Up @@ -162,15 +162,17 @@ function arrayToHash(array) {

var hash;

if (array.indexOf('__proto__') > -1)
{
hash = Object.create(null);
}else{
hash = {};
}

array.forEach(function(val, idx) {
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@YurySolovyov YurySolovyov Nov 12, 2015

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if idx is not used, why pass it?

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@JungMinu JungMinu Nov 12, 2015

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@YuriSolovyov Hmm, It was there before I made a PR,
I speculate that it could be used

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@YurySolovyov YurySolovyov Nov 12, 2015

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it is not used anywhere in the scope of the function, IMO it is safe to drop it


if(val==='__proto__'){
hash = Object.create(null);
}else{
hash = {};
}


hash[val] = true;
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@Fishrock123 Fishrock123 Nov 12, 2015

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You'd check if val was __proto__ here and discard it if it was, I think. cc @bnoordhuis


});

return hash;
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