es-toolkit/docs/reference/predicate/isPlainObject.md
2024-08-10 16:58:00 +09:00

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# isPlainObject
Checks if a given value is a plain object.
## Signature
```typescript
function isPlainObject(object: object): boolean;
```
### Parameters
- `object` (`object`): The value to check.
### Returns
(`boolean`): True if the value is a plain object, otherwise false.
## Examples
```typescript
console.log(isPlainObject({})); // true
console.log(isPlainObject([])); // false
console.log(isPlainObject(null)); // false
console.log(isPlainObject(Object.create(null))); // true
console.log(Buffer.from('hello, world')); // false
```
## Performance Comparison
| | [Bundle Size](../../bundle-size.md) | [Performance](../../performance.md) |
| ----------------- | ----------------------------------- | ----------------------------------- |
| es-toolkit | 279 bytes (82.4% smaller) | 1,505,684 times (1.70× faster) |
| es-toolkit/compat | 435 bytes (72.5% smaller) | 2,013,760 times (2.28× faster) |
| lodash-es | 1,586 bytes | 882,669 times |