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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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e8091ed
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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10 changes: 9 additions & 1 deletion lib/util.js
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Original file line number Diff line number Diff line change
Expand Up @@ -159,9 +159,17 @@ function stylizeNoColor(str, styleType) {


function arrayToHash(array) {
var hash = {};

var hash;

array.forEach(function(val, idx) {
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if idx is not used, why pass it?

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


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Why creating a new hash in each iteration?

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@pmq20 Sorry, it was a mistake

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

hash[val] = true;
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You'd check if val was __proto__ here and discard it if it was, I think. cc @bnoordhuis

});

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