Benchmark: Iterating over string

Script Preparation code:

var test = 'Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque pretium, neque vitae varius imperdiet, sem sapien lobortis libero, a pulvinar magna ligula sit amet ante. Mauris interdum laoreet tortor, quis euismod ante accumsan in. Curabitur viverra quam quam, id dapibus justo fermentum lacinia. Pellentesque accumsan ultrices massa non volutpat. Vivamus pretium id diam sed auctor. Cras augue odio, bibendum non est at, molestie pellentesque sapien. Sed quis odio tempus, semper lectus a, luctus metus. Donec euismod vitae nibh at aliquam. Praesent mauris dui, pretium vel interdum eu, condimentum in mauris. Integer pellentesque sapien a nunc finibus, sed pellentesque nisl tempor.';
var chars = [];

Tests:

Indexed access
for (let i = 0; i < test.length; i++) { const c = test[i]; chars.push(c); }
charCodeAt
for (let i = 0; i < test.length; i++) { const c = test.charCodeAt(i); chars.push(c); }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Indexed access
charCodeAt

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 6 months ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36 OPR/102.0.0.0

Browser/OS: Opera 102 on Windows

View result in a separate tab

Test name	Executions per second
Indexed access	13223.2 Ops/sec
charCodeAt	13412.4 Ops/sec

Iterating over string (version: 1)

Comparing performance of: Indexed access vs charCodeAt

Created: 5 years ago by: Registered User

Jump to the latest result

Indexed access

charCodeAt

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A