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| author | Bartek Iwańczuk <biwanczuk@gmail.com> | 2023-06-05 10:52:40 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-06-05 10:52:40 +0200 |
| commit | 21c2c01ebed902c70763bb9319c3ec48c4cb5284 (patch) | |
| tree | 82f01c418fc9abfb39aa370b3f3a6af820b10abb /ext/webidl/00_webidl.js | |
| parent | adf41edda12a26a84cb8b4252404aae2a9e7ae03 (diff) | |
perf: optimize RegExp usage in JS (#19364)
Towards https://github.com/denoland/deno/issues/19330
Shows about 1% improvement in the HTTP benchmark.
Diffstat (limited to 'ext/webidl/00_webidl.js')
| -rw-r--r-- | ext/webidl/00_webidl.js | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/ext/webidl/00_webidl.js b/ext/webidl/00_webidl.js index dfaa774e2..ca1c7c606 100644 --- a/ext/webidl/00_webidl.js +++ b/ext/webidl/00_webidl.js @@ -59,6 +59,7 @@ const { ReflectHas, ReflectOwnKeys, RegExpPrototypeTest, + RegExpPrototypeExec, SafeRegExp, SafeSet, SetPrototypeEntries, @@ -406,7 +407,7 @@ converters.DOMString = function (V, prefix, context, opts = {}) { const IS_BYTE_STRING = new SafeRegExp(/^[\x00-\xFF]*$/); converters.ByteString = (V, prefix, context, opts) => { const x = converters.DOMString(V, prefix, context, opts); - if (!RegExpPrototypeTest(IS_BYTE_STRING, x)) { + if (RegExpPrototypeExec(IS_BYTE_STRING, x) === null) { throw makeException( TypeError, "is not a valid ByteString", |