Run results for: Regex vs split/join - space to dash

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:135.0) Gecko/20100101 Firefox/135.0

Browser: Firefox 135

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Regex

6.7M/s

Split and Join

2.3M/s

View exact numbers

Test name	Executions per second
✓ Regex	6,662,766 Ops/sec
Split and Join	2,313,238 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('-');