Run results for: Split join vs replace

Run details:

User agent: Mozilla/5.0 (Linux; Android 13; SM-S901E) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.5249.126 Mobile Safari/537.36 OPR/72.3.3767.68685

Browser: Opera Mobile 72

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
split + join	1263476.0 Ops/sec
replace	899998.3 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