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String compare case insensitive: Regex.test() Vs toLowerCase() Vs localeCompare()
(version: 5)
Comparing performance of:
Regex.test() vs toLowerCase() vs localeCompare()
Created:
4 months ago
by:
Registered User
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Script Preparation code:
var value = "hello" var variable = "heLLo"; var regExp = new RegExp(value,'i');
Tests:
Regex.test()
regExp.test(variable);
toLowerCase()
value===variable.toLowerCase()
localeCompare()
value.localeCompare( variable, undefined, { sensitivity: "base" })
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
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Test case name
Result
Regex.test()
toLowerCase()
localeCompare()
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
12 days ago
)
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.0.0 Safari/537.36 Edg/147.0.0.0
Browser/OS:
Chrome 147 on Windows
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Test name
Executions per second
Regex.test()
54720900.0 Ops/sec
toLowerCase()
52729076.0 Ops/sec
localeCompare()
181542.3 Ops/sec
Related benchmarks:
RegEx.test vs. String.includes vs. String.match in case insensitive scenarios
RegEx.test vs. String.toLowerCase().includes vs. String.match
RegEx.test vs. String.includes vs. String.search (All case insensitive)
RegEx.test vs. String.includes vs. String.match Case Insensitive
RegEx.test vs. String.includes vs. String.match vs String.startsWith vs String.localeCompare vs String ===
RegEx.test vs. String.includes vs. String.match (case-insensitive)
RegEx.test vs. String.includes vs. String.match with lowercase
Case insensitive search: regex.test() vs string.toLowerCase().includes()
Regex vs string compare
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