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isArrayLikeObject

INFO

This function is only available in es-toolkit/compat for compatibility reasons. It either has alternative native JavaScript APIs or isn’t fully optimized yet.

When imported from es-toolkit/compat, it behaves exactly like lodash and provides the same functionalities, as detailed here.

Check if a value is a non-primitive, array-like object.

An array-like object is an object that is not null or undefined or a function, and has a length property that is a valid length.

This function can also serve as a type predicate in TypeScript, narrowing the type of the argument to ArrayLike<unknown> & object.

Signature

typescript
function isArrayLikeObject(value: unknown): value is ArrayLike<unknown> & object;

Parameters

  • value (unknown): The value to check if it is a non-primitive, array-like object.

Returns

(value is ArrayLike<unknown> & object): Returns true if the value is a non-primitive, array-like object, otherwise false.

Examples

typescript
import { isArrayLikeObject } from 'es-toolkit/predicate';

console.log(isArrayLikeObject([1, 2, 3])); // true
console.log(isArrayLikeObject({ 0: 'a', length: 1 })); // true
console.log(isArrayLikeObject('abc')); // false
console.log(isArrayLikeObject(() => {})); // false

Released under the MIT License.