at() – Get Item from Array at Given Index

array1.at(index)

• array1 is an array of items
• index is the position of item that is of interest

at() method returns the item at given position index

The index starts at zero for the items in array. 0 is the index for first item, 1 is the index for the second item, and so on.

Examples

1. Get item from array array1 at index=3.

let array1 = [2, 4, 8, 16, 32, 64, 128, 256];
let index = 3;
let item = array1.at(index);
console.log('Item : ' + item);

2. No index passed to at() method.

let array1 = [2, 4, 8, 16, 32, 64, 128, 256];
let item = array1.at();
console.log('Item : ' + item);

If no index is passed to at() method, it returns the first item, just like index=0.

3. Negative index to at() method.

let array1 = [2, 4, 8, 16, 32, 64, 128, 256];
let item = array1.at(-3);
console.log('Item : ' + item);

If negative index is passed to at() method, then it returns the item at the index from the end of the array. -1 is the index of last item, -2 is the index of last but one, and so on.