jsPerf.app is an online JavaScript performance benchmark test runner & jsperf.com mirror. It is a complete rewrite in homage to the once excellent jsperf.com now with hopefully a more modern & maintainable codebase.

jsperf.com URLs are mirrored at the same path, e.g:

https://jsperf.com/negative-modulo/2

Can be accessed at:

https://jsperf.app/negative-modulo/2

String concat with/no parens

Benchmark created by Nothing on October 22, 2014

Setup

url

Test runner

Ready to run.

Test Ops/sec

No parens

Testing in
Test	Ops/sec
No parens	`url = 'http://sample.test.localhost:8080/test/test/?sample=gdfghfgnhfgnghnfremorjjrijirjirinnvbinroitnbitibiinewhueuefhfirnvivnoifnv%2FjngnguuewfhuGNjijihvubhuhurhuhfruehvuhuvfu%2FjngnguuewfhuGNjijihvubhuhurhuhfruehvuhuvfu%2FjngnguuewfhuGNjijihvubhuhurhuhfruehvuhuvfu' + '&sample' + 2 + 'test'=2';`	ready
Parens	`url = 'http://sample.test.localhost:8080/test/test/?sample=gdfghfgnhfgnghnfremorjjrijirjirinnvbinroitnbitibiinewhueuefhfirnvivnoifnv%2FjngnguuewfhuGNjijihvubhuhurhuhfruehvuhuvfu%2FjngnguuewfhuGNjijihvubhuhurhuhfruehvuhuvfu%2FjngnguuewfhuGNjijihvubhuhurhuhfruehvuhuvfu' + ('&sample' + 2 + 'test'=2');`	ready

url = 'http://sample.test.localhost:8080/test/test/?sample=gdfghfgnhfgnghnfremorjjrijirjirinnvbinroitnbitibiinewhueuefhfirnvivnoifnv%2FjngnguuewfhuGNjijihvubhuhurhuhfruehvuhuvfu%2FjngnguuewfhuGNjijihvubhuhurhuhfruehvuhuvfu%2FjngnguuewfhuGNjijihvubhuhurhuhfruehvuhuvfu' + '&sample' + 2 + 'test'=2';

ready

Parens

url = 'http://sample.test.localhost:8080/test/test/?sample=gdfghfgnhfgnghnfremorjjrijirjirinnvbinroitnbitibiinewhueuefhfirnvivnoifnv%2FjngnguuewfhuGNjijihvubhuhurhuhfruehvuhuvfu%2FjngnguuewfhuGNjijihvubhuhurhuhfruehvuhuvfu%2FjngnguuewfhuGNjijihvubhuhurhuhfruehvuhuvfu' + ('&sample' + 2 + 'test'=2');

ready

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.

Revision 1: published by Nothing on October 22, 2014