Run results for: Native JS: concatenate string with + vs template literals vs String.concat2

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.1.1 Safari/605.1.15

Browser: Safari 18

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 15 days ago

Test name	Executions per second
using plus operator	521.3 Ops/sec
using concat function	341.5 Ops/sec
using template literals	517.7 Ops/sec

Script Preparation code:

var name = "name lkjasdl;fj la;sflk;asdjf l;kj l;aksdjfla;kjs lka;sdjf la;ksdjf l;aksdjfl ;askd l;aksjf als;kdjf la;skdjfl;aksdjfl;aksdfl;aksdjf l; l;aksdjf ;laskdjf l;aksdjf l;askdjfl;askdjf;laskdj fl;aksdjf las;kd fal;sdf al;skdfjla;ksdjfl;aksdjf la;skdjfla;ksdjfla;skdjfla;skdfjals;kdjfa;lskdfjals;kdfjal;skdfjals;kdfjal;skdfjal;skj a asd;lfkjasl;kd fl; kasdf l;askdj l;askdj ;ladskfja;lsdkfj al;sdkfj ;l asld;kfj as;ldkfja l;sdkfj al;skdfj as;ldkfj asl;dkf. l;asdkfj al;skdfj a;lkasdfj ;laksdfj a;sldkfj a;slasdflkj asl;dkfj asdl; asl;dkfj asl;dkfjasl;dkfj a;lsdfjla;skdfj al;sdkjf lk;sadf asl;kdfja s;ldkfj asl;dkfj als;kdfj als;kdfj a;lskdfj al;skdfj als;kdfj a;lskdfj as;lkdf. asldf asl;kdf als;dkf asld;kfjasl;dkfj asl;kdfaslkd fa;lskd aslk;dfj asl;dkfj als;dfkjasl;dkfj asl;kdfj als;kdfj asl;kdfj asl;kdf aslk;d fljasdfkjasldk;fja s;lkdfj al;skdfjal;ksdfj lak;sdf a;lskdfj l;askdfj l;askdfj a;lskdj alskdfja l;skdfj als;kdfj asd;lkfjasdl;kfasdjf al;skdfj a;lskdfj a;lskdfj als;kdfj al; as ldkfjas l;dkfj asl;dfajsl;kdfj asl;kdfj al;skdfj al;skdfj al;skdfj al;skdfj als;kdfj als;kdfj slkda asl;kdfj l;askdfj al;skdf alsk;df alsk;dfj as;lkdfj l;askdfj laskdf";
var id = "id name lkjasdl;fj la;sflk;asdjf l;kj l;aksdjfla;kjs lka;sdjf la;ksdjf l;aksdjfl ;askd l;aksjf als;kdjf la;skdjfl;aksdjfl;aksdfl;aksdjf l; l;aksdjf ;laskdjf l;aksdjf l;askdjfl;askdjf;laskdj fl;aksdjf las;kd fal;sdf al;skdfjla;ksdjfl;aksdjf la;skdjfla;ksdjfla;skdjfla;skdfjals;kdjfa;lskdfjals;kdfjal;skdfjals;kdfjal;skdfjal;skj a asd;lfkjasl;kd fl; kasdf l;askdj l;askdj ;ladskfja;lsdkfj al;sdkfj ;l asld;kfj as;ldkfja l;sdkfj al;skdfj as;ldkfj asl;dkf. l;asdkfj al;skdfj a;lkasdfj ;laksdfj a;sldkfj a;slasdflkj asl;dkfj asdl; asl;dkfj asl;dkfjasl;dkfj a;lsdfjla;skdfj al;sdkjf lk;sadf asl;kdfja s;ldkfj asl;dkfj als;kdfj als;kdfj a;lskdfj al;skdfj als;kdfj a;lskdfj as;lkdf. asldf asl;kdf als;dkf asld;kfjasl;dkfj asl;kdfaslkd fa;lskd aslk;dfj asl;dkfj als;dfkjasl;dkfj asl;kdfj als;kdfj asl;kdfj asl;kdf aslk;d fljasdfkjasldk;fja s;lkdfj al;skdfjal;ksdfj lak;sdf a;lskdfj l;askdfj l;askdfj a;lskdj alskdfja l;skdfj als;kdfj asd;lkfjasdl;kfasdjf al;skdfj a;lskdfj a;lskdfj als;kdfj al; as ldkfjas l;dkfj asl;dfajsl;kdfj asl;kdfj al;skdfj al;skdfj al;skdfj al;skdfj als;kdfj als;kdfj slkda asl;kdfj l;askdfj al;skdf alsk;df alsk;dfj as;lkdfj l;askdfj laskdf";

Tests:

using plus operator
for (let i = 0; i < 80000; ++i) { let result = id + ": 1, " + name + ": someItem"; }
using concat function
for (let i = 0; i < 80000; ++i) { let result = "".concat(id, ": 1, ", name, ": someItem"); }
using template literals
for (let i = 0; i < 80000; ++i) { let result = `${id}: 1, ${name}: someItem`; }

Run results for: Native JS: concatenate string with + vs template literals vs String.concat2

find best solution for concatenate 4 strings

using plus operator

using concat function

using template literals