[rules-users] MultiValueRestriction

[Wolfgang Laun]

On 19/06/2013, droolster <quant.coder at gmail.com> wrote:
> Hello,
>
> I saw the following in the "Design Patterns for PRS system" pdf and could
> not understand the difference between the two statements (they look the
> same
> to me). Please can the community clarify what the difference is:

Just count the keystrokes :-) Probably easier to read, too.
-W

>
> A multiple choice could be written using the same syntactic form, e.g.,
>
> Type( strField == "Huey" || == "Dewey" || == "Louie" )
>
> but if you are testing for equality, the MultiValueRestriction is to be
> preferred, so that the preceding
> pattern is better written as
>
> Type( strField in ( "Huey", "Dewey", "Louie" ) )
>
> Thank you,
>
> Iftikhar
>
>
>
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