Porovnávané verzie

Kľúč

  • Tento riadok sa pridal
  • Riadok je odstránený.
  • Formátovanie sa zmenilo.

%PrevV function


Function
The function returns the previous value of the argument. Function usefulness - Eval tags.
Declaration


Blok kódu
languageesl
themeConfluence
UNIVAL  %PrevV(
   UNIVAL in Arg
 )


Parameters


ArgExpression of optional type.



Note
Based on the way of evaluation of eval tag the result will be:
  • periodical eval tag - returns the value of argument valid during previous calculation,
  • on-change eval tag - returns the previous value of the argument.