https://codereview.chromium.org/657863002/diff/1/src/harmony-string.js
File src/harmony-string.js (right):
https://codereview.chromium.org/657863002/diff/1/src/harmony-string.js#newcode30
src/harmony-string.js:30: s += s;
There will be extra unnecessary concatenation at the end. Maybe:
while (1) {
if (n & 1) r += s;
n >>= 1;
if (!n) break;
s += s;
}
https://codereview.chromium.org/657863002/
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