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Literal vs Constructor RegExp
(version: 1)
Comparing performance of:
Literal RegExps vs Constructed RegExps
Created:
one year ago
by:
Guest
Go to the latest result
HTML Preparation code:
<!--your preparation HTML code goes here-->
Script Preparation code:
var elements = Array.of(1000000).fill(0) var literalRegexps = elements.map(() => /a/) var constructedRegexps = elements
Tests:
Literal RegExps
literalRegexps.forEach((r) => r.test('aaaa'))
Constructed RegExps
constructedRegexps.forEach((r) => new RegExp('a'.replace(/a/g, 'b')).test('aaaa'))
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
Literal RegExps
Constructed RegExps
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
5 months ago
)
User agent:
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Mobile Safari/537.36
Browser/OS:
Chrome Mobile 144 on Android
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Embed Benchmark Result
Literal RegExps
26.3M/s
Constructed RegExps
4.5M/s
View exact numbers
Test name
Executions per second
✓
Literal RegExps
26,250,526 Ops/sec
Constructed RegExps
4,471,308 Ops/sec
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