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Run results for:
match vs exec with many matches
js RegExp.prototype.exec vs String.prototype.match
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<iframe src="https://measurethat.net/Embed?id=587262" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36
Browser:
Chrome 133
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
RegExp#exec with `while` loop
127K/s
String#match
56K/s
View exact numbers
Test name
Executions per second
✓
RegExp#exec with `while` loop
127,006 Ops/sec
String#match
56,056 Ops/sec
Script Preparation code:
var str = "$".repeat(300); var re = /[$]/g;
Tests:
RegExp#exec with `while` loop
const matches = []; let execResult = []; do { execResult = re.exec(str); if (!execResult) break; matches.push(execResult[0]); } while (true);
String#match
const matches = str.match(re);