Add a new method, named at(), to Array.prototype, String.prototype, and the TypedArray prototypes, that permit relative indexing with negative indices. ``` let arr = [1,2,3,4]; arr.at(-1); // Returns 4 ```
Motivation
Relative indexing via negative indices is a feature that enjoys popularity in other languages (e.g. Python) as well as having been requested by JS programmers.
Specification
Status in Chromium
In development (tracking bug)
Consensus & Standardization
After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.
- Worth prototyping
- No signal
- In development
- No signals
Owner
Last updated on 2021-03-31