Run results for: Javascript 'concat()' vs '+' for strings

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:109.0) Gecko/20100101 Firefox/115.0

Browser: Firefox 115

Operating system: Mac OS X 10.13

Device Platform: Desktop

Date tested: 2 years ago

concat()

10K/s

plus_operator

9K/s

View exact numbers

Test name	Executions per second
✓ concat()	9,857 Ops/sec
plus_operator	8,691 Ops/sec

Script Preparation code:

var string1 = "Hello ";
var string2 = " world!";

Tests: