Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
Run results for:
char index vs charAt() vs slice() vs charCodeAt()
Compare methods for testing string's character.
Go to the benchmark
Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=624543" 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/142.0.0.0 Safari/537.36
Browser:
Chrome 142
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
3 months ago
Test name
Executions per second
character index
185574896.0 Ops/sec
charAt()
185375232.0 Ops/sec
slice()
183706528.0 Ops/sec
charCodeAt()
81750680.0 Ops/sec
Script Preparation code:
var str = 'foo bar baz'; var noop = Function.prototype;
Tests:
character index
if (str[4] == 'b') noop();
charAt()
if (str.charAt(4) == 'b') noop();
slice()
if (str.slice(4, 5) == 'b') noop();
charCodeAt()
if (str.charCodeAt(4) == 98) noop();