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Optimize arrayUnique (#6871)

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Jukka Kurkela 2019-12-31 19:56:33 +02:00 committed by Evert Timberg
parent 102a311b44
commit ab3928694f
1 changed files with 8 additions and 9 deletions
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17
src/scales/scale.time.js
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@ -66,19 +66,18 @@ function sorter(a, b) {
}
function arrayUnique(items) {
const hash = {};
const out = [];
let i, ilen, item;
const set = new Set();
let i, ilen;
for (i = 0, ilen = items.length; i < ilen; ++i) {
item = items[i];
if (!hash[item]) {
hash[item] = true;
out.push(item);
}
set.add(items[i]);
}
return out;
if (set.size === ilen) {
return items;
}
return [...set];
}
/**