Run results for: array[array.length - 1] vs array.at(-1) (V2)

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.0 Safari/605.1.15

Browser: Safari 17

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
array[array.length - 1]	10235121.0 Ops/sec
array.at(-1)	14406814.0 Ops/sec

Script Preparation code:

var array = [];
for (let i = 0; i < 1000; ++i) {
    array[i] = i;
}

var results = [];

​x
 
var array = [];for (let i = 0; i < 1000; ++i) {    array[i] = i;}​var results = [];

Tests:

array[array.length - 1]
results.push(array[array.length - 1]);
results.push(array[array.length - 1]);
array.at(-1)
results.push(array.at(-1));
results.push(array.at(-1));