numeric
Returns true if the input value is a number or a string that can be parsed as a number; false otherwise.

Languages
Built-in, C++, C#, Java.
Parameters
| Name | Type | Description | 
|---|---|---|
| value | xs:decimal | The input value. | 
Example
If the input value is the string "4.33", the function returns true. If the input value is the string "4.33 USD", the function returns false.