Run results for: Simple Split vs Match - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.63 Safari/537.36

Browser: Chrome 93

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Matching, with groups	7531966.0 Ops/sec
Split	5745459.0 Ops/sec
Matching, with look behind	8051582.0 Ops/sec

Website performance monitoring

Script Preparation code:

var str = 'r/funny'

Tests:

Matching, with groups
str.match(/\/(.)/)[1].toUpperCase()
Split
str.split('/')[1][0].toUpperCase()
Matching, with look behind
str.match(/(?<=\/)./)[0].toUpperCase()