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Run results for:
startsWith vs indexOf vs endsWith
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=610201" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36
Browser:
Chrome 137
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
indexOf(end)
148.3M/s
indexOf(start)
142.2M/s
startsWith
42.3M/s
endsWith
38.3M/s
View exact numbers
Test name
Executions per second
✓
indexOf(end)
148,267,600 Ops/sec
indexOf(start)
142,232,192 Ops/sec
startsWith
42,268,664 Ops/sec
endsWith
38,307,376 Ops/sec
Script Preparation code:
var start = 'hello!'; var end = 'string!'; var string = start + ' im a ' + end;
Tests:
startsWith
string.startsWith(start);
indexOf(start)
string.indexOf(start) == 0;
endsWith
string.endsWith(end);
indexOf(end)
string.indexOf(end) == (string.length - end.length);