Function hasProp

hasProp(object, prop?): boolean
Returns whether the given object has the specified property
Parameters
- object: any
  the object to check
- Optionalprop: null | string
  the property name to check
Returns boolean
whether the object has the specified property
Example
```
hasProp({foo: 'bar'}, 'foo');    // true
hasProp({foo: 'bar'}, 'bar');    // false
```