Run results for: Split and join vs split/join regex replace

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:93.0) Gecko/20100101 Firefox/93.0

Browser: Firefox 93

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Split and regex replace	981866.1 Ops/sec
Multiple Split and Join	711681.4 Ops/sec

Script Preparation code:

var str = 'really rare  [TL_HIDDEN] (Phone number hidden by company) (Email hidden by company) [EMAIL_HIDDEN]';

Tests:

Split and regex replace
str.split('(Phone number hidden by company)') .join('') .split('(Email hidden by company)') .join('').replace(/(\[TL_HIDDEN\])|(\[EMAIL_HIDDEN\])/g, "");
Multiple Split and Join
str.split('(Phone number hidden by company)') .join('') .split('(Email hidden by company)') .join('') .split('[TL_HIDDEN]') .join('') .split('[EMAIL_HIDDEN]') .join('');