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Run results for:
RegEx.test vs. String.includes vs. String.match vs == .slice
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<iframe src="https://measurethat.net/Embed?id=587133" 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
==
176.1M/s
String.includes
159.6M/s
=== known length
138.3M/s
startsWith
91.1M/s
RegEx.test
49.4M/s
String.match
9.6M/s
View exact numbers
Test name
Executions per second
✓
==
176,137,040 Ops/sec
String.includes
159,605,744 Ops/sec
=== known length
138,267,648 Ops/sec
startsWith
91,091,936 Ops/sec
RegEx.test
49,395,776 Ops/sec
String.match
9,594,063 Ops/sec
Script Preparation code:
var string = "Hello world!"; var regex = /Hello/;
Tests:
RegEx.test
regex.test(string);
String.includes
string.includes("Hello");
String.match
string.match("Hello");
==
"Hello" == string.slice(0, "Hello".length);
=== known length
string.slice(0, 5) === "Hello"
startsWith
string.startsWith("Hello")