Run results for: Regex vs split/join (remove spaces)

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36

Browser: Chrome 104

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Regex	720536.6 Ops/sec
Split and Join	1410765.0 Ops/sec

Script Preparation code:

var str = 'Abcd efghij klmnopqrstuv wxy Abcd efghij klmnopqrstuv wxy Abcd efghij klmnopqrstuv wxyAbcd efghij klmnopqrstuv wxy Abcd efghij klmnopqrstuv wxy Abcd efghij klmnopqrstuv wxy';

Tests:

Regex
str.replace(/\s+/g, '');
Split and Join
str.split(' ').join('').trim();

Run results for: Regex vs split/join (remove spaces)

Regex

Split and Join