Menu

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

Test case details

Title *

Description
(Markdown syntax is allowed)

Preparation Code

Preparation HTML
(this will be inserted in the <body> of a valid HTML5 document in standards mode)
(useful when testing DOM operations or including libraries)

Setup JS

const testString = `<strong>title</strong>
einen Farbabstand von Delta E<1 kalibriert und zeigt eine unglaublich realitätsgetreue Darstellung Ihrer Werke.`

Teardown JS

Test cases

Test #1

Title *

Async

Code *

const regex = /(<\/?[a-z0-3]+(?:\s[^">]*|"[^"]*")*>)/i

testString.split(regex)

Test #2

Title *

Async

Code *

const regex = /(<\/?[a-z0-3]+(?:|\s*|(?:\s[^"=>]+=\s*"[^"]*"|\s[^"=>]+){0,10})>)/i

testString.split(regex)

Test #3

Title *

Async

Code *

// the longest tag is 5 characters (tbody), so we can limit that
// to avoid asterisk on whitespace, we can replace all concecutive whitespace with one single space, and then use ? instead.
const regex = /(<\/?[a-z0-3]{2,5}(?:\s[^">]*|"[^"]*")*>)/i

testString
// replace all concecutive spaces with one
.replace(/\ +/g, " ")

.split(regex)