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=628354" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:150.0) Gecko/20100101 Firefox/150.0
Browser:
Firefox 150
Operating system:
Ubuntu
Device Platform:
Desktop
Date tested:
4 days ago
Test name
Executions per second
character index
96894328.0 Ops/sec
charAt()
102990472.0 Ops/sec
slice()
78133088.0 Ops/sec
charCodeAt()
102625896.0 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();