at ​

Gets the elements at specified indices from an array and returns a new array.

const result = at(arr, indices);

Reference ​

at(arr, indices) ​

Use at when you want to select elements at specific positions from an array. You can use negative indices to select elements from the end of the array.

import { at } from 'es-toolkit/array';

// Get elements at multiple indices from a number array.
at([10, 20, 30, 40, 50], [1, 3, 4]);
// Returns: [20, 40, 50]

// Use negative indices to get elements from the end.
at(['a', 'b', 'c', 'd'], [0, -1, -2]);
// Returns: ['a', 'd', 'c']

Non-integer indices are converted to integers.

import { at } from 'es-toolkit/array';

at([1, 2, 3, 4], [1.5, 2.9]); // [2, 3]

Parameters ​

• arr (T[]): The array to get elements from.
• indices (number[]): An array of indices of the elements to get. Negative values count from the end of the array.

Returns ​

(T[]): A new array containing the elements at the specified indices.