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hperrin/index.js

Last active May 9, 2018 00:01
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JavaScript strRepeat. (Ridiculously efficient.)
Raw
index.js
export default function strRepeat (str, repeat) {
let curStr = str, i = 1, result = '';
while (true) {
if (i & repeat) result += curStr;
i *= 2;
if (i >= repeat) break;
curStr += curStr;
}
return result;
}
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