Run results for: slice vs substring from end

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:88.0) Gecko/20100101 Firefox/88.0

Browser: Firefox 88

Operating system: Ubuntu

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
substring	111496720.0 Ops/sec
slice	125070376.0 Ops/sec

Script Preparation code:

var example = 'MY STRING OF VARYING LENGTH THAT HAS IMPORTANT CHARACTERS AT THE END WHICH I WANT.';

AخA
 
var example = 'MY STRING OF VARYING LENGTH THAT HAS IMPORTANT CHARACTERS AT THE END WHICH I WANT.';

Tests:

substring
var result = example.substring(0, example.length - 4);
var result = example.substring(0, example.length - 4);
slice
var result = example.slice(-4);
var result = example.slice(-4);