|   |   | 
| $nothing Evaluates to an empty variable | 
| Usage | 
| <nothing> $nothing | 
| Description | 
| Evaluates to an empty variable. This is a special value somewhat similar to the $null object: it is used to denote absence of information. For example, a function might decide to return a meaningful value when the input parameters are correct and $nothing when the input parameters are wrong. | 
| See also | 
| $null |