Run results for: Array .push() vs .unshift() vs spread

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:76.0) Gecko/20100101 Firefox/76.0

Browser: Firefox 76

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 4 years ago

Script Preparation code:

var arr = [10]

Tests: