Array.prototype.at is on its way

I just saw that Array.prototype.at will ship in Chrome 89 and Firefox 85. How do I know? I'm following the MDN browser combat data repo on GitHub. 🙈

const numbers = [1, 2, 3];

// old way to access array elements from the end
numbers[numbers.length - 1]; // 3

// new way to access array elements from the end
numbers.at(-1); // 3

That's a welcome addition to the language! 🎉

Update: one year after publishing this post and this new valuable Array method is almost ready for prime time! Here's the up-to-date MDN browser compat data:

MDN Compat Data (source)

Browser support info for Array.prototype.at()

92	92	92	90	90	15.4	15.4	16.0	92

Additional resources:

• MDN pull request
• Relative indexing proposal