Run results for: rcss split vs regex

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.149 Safari/537.36

Browser: Chrome 80

Operating system: Windows

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
split + regex	941893.2 Ops/sec
regex	3350966.0 Ops/sec

Tests:

split + regex
const eventSelectorRegex = /\[(#|\.)[a-zA-Z0-9_-]+\]/; let item = '@mousemove.clientX[.sidenav]'; let arr = item.substr(1).split('.'); let eventName = arr[0]; let eventPropName = arr[1];
regex
const regex = /@([a-zA-Z0-9_]+\b)(?:\[((?:#|\.)[a-zA-Z0-9_-]+)\]|)\.([a-zA-Z0-9_]+\b)/; let item = '@mousemove.clientX[.sidenav]'; let res = item.match(regex); let eventName = res[1]; let eventPropName = res[2]; let selector = res[3];