f$IsNoVal (f$IstLeer)
f$IsNoVal (f$IstLeer)
Verification of a parameter for its NOVAL state.
Please note: the parameter name is usually given as string constants, i.e. in quotation marks. If a string parameter is entered - like in the syntax description - then the value of the parameter entered is considered as the parameter name (as long as it is a string).
Syntax: | IsNoVal = f$IsNoVal( ParaName ) | ||
| Argument | Type | Meaning |
| ParaName | String | Parameter to be inspected for NOVAL |
Result: | Logical | true (1) for parameter value NOVAL, otherwise false (0) | |
Example: | TestRes = f$IsNoVal( 'Ident' ) → TestRes = 1 | ||