when-else

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when-else

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    - Classes
      - class when
        
        Instance variables
        
        when-condition
        
        when-else
        
        when-then

when <-> else: any|function

Either of when<-then or when<-else is evaluated depending on the result of testing when<-condition. If this slot contains a function, this function is evaluated and the result returned. Otherwise the plain value is returned.