Run results for: .slice vs .replace

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:77.0) Gecko/20100101 Firefox/77.0

Browser: Firefox 77

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
.slice	49515.3 Ops/sec
.replace	47733.0 Ops/sec

Tests:

.slice
let date1 = "2020-04-10 21:15:44 UTC" console.log(date1.slice(0,-4))
.replace
let date1 = "2020-04-10 21:15:44 UTC" console.log(date1.replace(" UTC", "Z"))