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Run results for:
Performance Test: substring vs substr vs slice
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<iframe src="https://measurethat.net/Embed?id=572471" 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/131.0.0.0 Safari/537.36
Browser:
Chrome 131
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
substr
155.2M/s
slice
150.4M/s
substring
148.7M/s
View exact numbers
Test name
Executions per second
✓
substr
155,182,352 Ops/sec
slice
150,420,192 Ops/sec
substring
148,739,136 Ops/sec
Script Preparation code:
var string = "I am the god of hellfire, and I bring you..."
Tests:
slice
var substring = string.slice(17, 25);
substring
var substring = string.substring(17, 25);
substr
var substring = string.substr(17, 25);