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Optimize arrayUnique (#6871)
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@ -66,19 +66,18 @@ function sorter(a, b) {
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}
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function arrayUnique(items) {
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const hash = {};
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const out = [];
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let i, ilen, item;
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const set = new Set();
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let i, ilen;
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for (i = 0, ilen = items.length; i < ilen; ++i) {
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item = items[i];
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if (!hash[item]) {
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hash[item] = true;
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out.push(item);
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}
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set.add(items[i]);
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}
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return out;
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if (set.size === ilen) {
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return items;
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}
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return [...set];
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}
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/**
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