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Use a buffer instead of string concatenation in reverseIfRtl in src/core/unicode.js

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This avoids creating intermediate strings and should be slightly more
efficient.
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Tim van der Meij 2021-02-27 13:18:43 +01:00
parent 24f80f1e38
commit 4e96d59fca
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1 changed files with 3 additions and 3 deletions
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src/core/unicode.js
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@ -1633,11 +1633,11 @@ function reverseIfRtl(chars) {
if (charsLength <= 1 || !isRTLRangeFor(chars.charCodeAt(0))) { if (charsLength <= 1 || !isRTLRangeFor(chars.charCodeAt(0))) {
return chars; return chars;
} }
let s = ""; const buf = [];
for (let ii = charsLength - 1; ii >= 0; ii--) { for (let ii = charsLength - 1; ii >= 0; ii--) {
s += chars[ii]; buf.push(chars[ii]);
} }
return s; return buf.join("");
} }
export { export {