Run results for: Getting last element of array

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser: Chrome 120

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
slice	21203.5 Ops/sec
length	32452.8 Ops/sec

Script Preparation code:

var arr = [];
for (let i = 0; i < 1000000; i++) {
    arr.push(i);
}

Tests:

slice
for (let i = 0; i < 1000; i++) { const v = arr.slice(-1)[0]; }
length
let len = arr.length - 1 for (let i = 0; i < 1000; i++) { const v = arr[len]; }