Run results for: Split join vs replace

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.5005.141 Whale/3.15.136.29 Safari/537.36

Browser: Chrome 102

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
split + join	3497344.0 Ops/sec
replace	3518259.0 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')

Run results for: Split join vs replace

split + join

replace