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Run results for:
string characters split map vs for loop vs split foreach
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<iframe src="https://measurethat.net/Embed?id=528446" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
Browser:
Chrome 125
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
split map
834881.7 Ops/sec
for loop
640328.2 Ops/sec
split foreach
611308.8 Ops/sec
Tests:
split map
const string = 'asdf1234qwer'; const mapper = (char) => String.fromCharCode(char.charCodeAt(0)) string.split('').map(mapper).join('')
for loop
const string = 'asdf1234qwer'; const mapper = (char) => String.fromCharCode(char.charCodeAt(0)) let result = "" for(const char of string) { result += mapper(char) }
split foreach
const string = 'asdf1234qwer'; const mapper = (char) => String.fromCharCode(char.charCodeAt(0)) let result = '' string.split('').forEach(char => { result += mapper(char) })