Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
Run results for:
Object key, typeof === 'function' vs startsWith 'on' vs 'o' 'n'
Go to the benchmark
Embed
Embed Benchmark Result
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:128.0) Gecko/20100101 Firefox/128.0
Browser:
Firefox 128
Operating system:
Windows
Device Platform:
Desktop
Date tested:
7 months ago
Test name
Executions per second
typeof key === function
175.3 Ops/sec
startsWith on
218.3 Ops/sec
0 === o and 1 === n
232.1 Ops/sec
HTML Preparation code:
<!--your preparation HTML code goes here-->
Script Preparation code:
const attrs = { class: 'test', onclick: e => console.log(e), style: 'color: red;', onfocus: e => console.log(e), }; const count = 1000;
Tests:
typeof key === function
for(let i = 0; i < count; i++) { const el = document.createElement('div'); for(const [k, v] of Object.entries(attrs)) { if(typeof k === 'function') el[k] = v; else el.setAttribute(k, v); } }
startsWith on
for(let i = 0; i < count; i++) { const el = document.createElement('div'); for(const [k, v] of Object.entries(attrs)) { if(k.startsWith('on')) el[k] = v; else el.setAttribute(k, v); } }
0 === o and 1 === n
for(let i = 0; i < count; i++) { const el = document.createElement('div'); for(const [k, v] of Object.entries(attrs)) { if(k[0] === 'o' && k[1] === 'n') el[k] = v; else el.setAttribute(k, v); } }