Array at()The at() method of arrays and typed arrays returns the item at an index, including negative indices for getting items relative to the end of an array. Also known as the relative indexing method.arraysArrayswidely2022-03-142024-09-14https://tc39.es/ecma262/multipage/indexed-collections.html#sec-array.prototype.athttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/atjavascript.builtins.Array.atjavascript.builtins.TypedArray.athttps://nowyoucanuse.com/features--array-at.html