# IfNullOrWhiteSpace Method
Replaces a null or whitespace string with a specified replacement string.
## Definition
**Namespace:** CapyKit.Extensions
**Assembly:** CapyKit (in CapyKit.dll) Version: 1.0.2
**C#**
``` C#
public static string IfNullOrWhiteSpace(
this string value,
string replacement
)
```
**F#**
``` F#
[]
static member IfNullOrWhiteSpace :
value : string *
replacement : string -> string
```
#### Parameters
- String
- The original string.
- String
- The replacement string.
#### Return Value
String
The original string if not null or whitespace, otherwise the replacement string.
#### Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type String. When you use instance method syntax to call this method, omit the first parameter. For more information, see
Extension Methods (Visual Basic) or
Extension Methods (C# Programming Guide).
## See Also
#### Reference
StringExtensions Class
CapyKit.Extensions Namespace
IsNullOrWhiteSpace(String)