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Documentation of FOR EACH

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	Documentation of FOR EACH by Jussi Lahtinen :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message http://gambasdoc.org/help/lang/foreach "The order of the enumeration in not necessarily predictable. See the documentation of each enumerable class for more details on that." I can't find any else information on that topic. What does that mean? Jussi ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ Gambas-user mailing list Gambas-user@... https://lists.sourceforge.net/lists/listinfo/gambas-user
	Re: Documentation of FOR EACH by Benoît Minisini :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message > http://gambasdoc.org/help/lang/foreach > > "The order of the enumeration in not necessarily predictable. See the > documentation of each enumerable class for more details on that." > > I can't find any else information on that topic. > What does that mean? > > Jussi > It means that sometimes the order of elements is predictable, sometimes it is not. If you enumerate an array or a collection, the order is predictable. Arrays are enumerated by index, while collections are enumerated by following the element creation order. The following code: Dim aArray As New String[] = [ "blue", "white", "red" ] Dim aCol As New Collection = [ "a": "blue", "b": "white", "c": "red" ] Dim sVal As String For Each sVal in aArray Print sVal;; Next Print For Each sVal in cCol Print sVal;; Next Print will print: blue white red blue white red For other enumerable classes, you must suppose that the order of enumeration is random, unless the contrary is explicitely written in the class documentation. Regards, -- Benoît Minisini ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ Gambas-user mailing list Gambas-user@... https://lists.sourceforge.net/lists/listinfo/gambas-user
	Re: Documentation of FOR EACH by Jussi Lahtinen :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message OK. Thanks! Jussi 2009/10/26 Benoît Minisini <gambas@...>: >> http://gambasdoc.org/help/lang/foreach >> >> "The order of the enumeration in not necessarily predictable. See the >> documentation of each enumerable class for more details on that." >> >> I can't find any else information on that topic. >> What does that mean? >> >> Jussi >> > > It means that sometimes the order of elements is predictable, sometimes it is > not. > > If you enumerate an array or a collection, the order is predictable. Arrays > are enumerated by index, while collections are enumerated by following the > element creation order. > > The following code: > > Dim aArray As New String[] = [ "blue", "white", "red" ] > Dim aCol As New Collection = [ "a": "blue", "b": "white", "c": "red" ] > Dim sVal As String > > For Each sVal in aArray > Print sVal;; > Next > Print > > For Each sVal in cCol > Print sVal;; > Next > Print > > will print: > > blue white red > blue white red > > For other enumerable classes, you must suppose that the order of enumeration > is random, unless the contrary is explicitely written in the class > documentation. > > Regards, > > -- > Benoît Minisini > > ------------------------------------------------------------------------------ > Come build with us! The BlackBerry(R) Developer Conference in SF, CA > is the only developer event you need to attend this year. Jumpstart your > developing skills, take BlackBerry mobile applications to market and stay > ahead of the curve. Join us from November 9 - 12, 2009. Register now! > http://p.sf.net/sfu/devconference > _______________________________________________ > Gambas-user mailing list > Gambas-user@... > https://lists.sourceforge.net/lists/listinfo/gambas-user > ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ Gambas-user mailing list Gambas-user@... https://lists.sourceforge.net/lists/listinfo/gambas-user