Run results for: string concat: concat vs +

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36

Browser: Chrome 87

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
concat	1283668.6 Ops/sec
+	1301781.8 Ops/sec

Script Preparation code:

var str1 = 'lorem ipsum', str2 = "dolor sit amet", str3 = "consectetur adipiscing elit";
var res_concat = '', res_plus = '';

AخA
 
var str1 = 'lorem ipsum', str2 = "dolor sit amet", str3 = "consectetur adipiscing elit";var res_concat = '', res_plus = '';

Tests:

concat
res_concat = str1.concat(str2, str3);
res_concat = str1.concat(str2, str3);
+
res_plus = str1 + str2 + str3
res_plus = str1 + str2 + str3