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Run results for:
Split join vs replace
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Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36
Browser:
Chrome 121
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
replace
4.2M/s
split + join
3.0M/s
View exact numbers
Test name
Executions per second
✓
replace
4,170,980 Ops/sec
split + join
3,010,435 Ops/sec
Script Preparation code:
var example = 'AgreementChangeId'
Tests:
split + join
var result = example.split(/(?=[A-Z])/).join(' ');
replace
var result = example.replace(/([A-Z]+)/g, ' $1')