isArray (Lodash Compatibility)

::: warning Use Array.isArray

This isArray function operates slowly due to additional function calls.

Instead, use the faster and modern Array.isArray.

:::

Checks if a value is an array.

const result = isArray(value);

Usage

isArray(value)

Use isArray when you want to check if a value is an array. This function also works as a type guard in TypeScript.

import { isArray } from 'es-toolkit/compat';

// Array check
isArray([1, 2, 3]);
// Returns: true

isArray('abc');
// Returns: false

isArray(() => {});
// Returns: false

// Distinguish from objects
isArray({ 0: 'a', 1: 'b', length: 2 });
// Returns: false

isArray(null);
// Returns: false

Parameters

• value (unknown): The value to check if it's an array.

Returns

(value is any[]): Returns true if the value is an array, otherwise false.