Run results for: Native Array at vs Native Array length - 1 vs Lodash at

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:129.0) Gecko/20100101 Firefox/129.0

Browser: Firefox 129

Operating system: Ubuntu

Device Platform: Desktop

Date tested: one year ago

Native At

2123.6M/s

Lodash last

1067.8M/s

Native length - 1

32.0M/s

View exact numbers

Test name	Executions per second
✓ Native At	2,123,588,608 Ops/sec
Lodash last	1,067,807,040 Ops/sec
Native length - 1	31,976,566 Ops/sec

HTML Preparation code:

https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.21/lodash.min.js

Script Preparation code:

var max1 = 100000; // 100,000 (100 Thousand)
var max2 = 10000000; // 10,000,000 (10 Million)
var max3 = 100000000; // 100,000,000 (100 Million)

var arr1 = [];
for (var i = 0; i <= max2; i++) {
    arr2.push(i);
}

Tests:

Native At
arr1.at(-1)
Lodash last
_.last(arr1)
Native length - 1
arr1[arr1.length - 1]