# CallableType

- `v::callableType()`

Validates if the input is a callable value.

```php
v::callableType()->validate(function () {}); // true
v::callableType()->validate('trim'); // true
v::callableType()->validate([new ObjectType, 'methodName']); // true
```

***
See also:

  * [ArrayType](ArrayType.md)
  * [BoolType](BoolType.md)
  * [BoolVal](BoolVal.md)
  * [Callback](Callback.md)
  * [FloatType](FloatType.md)
  * [IntType](IntType.md)
  * [NullType](NullType.md)
  * [ObjectType](ObjectType.md)
  * [ResourceType](ResourceType.md)
  * [StringType](StringType.md)
  * [Type](Type.md)
