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Literal vs Constructor RegExp
(version: 1)
Comparing performance of:
Literal RegExps vs Constructed RegExps
Created:
one year ago
by:
Guest
Jump 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:
2 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
Test name
Executions per second
Literal RegExps
26250526.0 Ops/sec
Constructed RegExps
4471307.5 Ops/sec
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regex vs double replace vs substring
Various regex testing patterns
single regex vs double regex vs for loop
test array vs regex
String replace using regex vs string
Regex vs substring loop performance
RegEx.test vs. String.includes vs. String.match vs String.replace
RegEx.test vs. String.includes vs. String.match vs String.replace vs String.replace classic
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