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en:create:filter-elseif [28.11.2014 12:58] alexander.ritter |
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| How the questionnaire continues after a filter is often not just limited to two options; in fact there are several possibilities as to how it progresses. For example, people with an analog internet connection or ISDN should be asked about the tariff they use; DSL users about the speed and connection provider. People who have a different connection will get questions about the type of cable between the computer and the wall. | How the questionnaire continues after a filter is often not just limited to two options; in fact there are several possibilities as to how it progresses. For example, people with an analog internet connection or ISDN should be asked about the tariff they use; DSL users about the speed and connection provider. People who have a different connection will get questions about the type of cable between the computer and the wall. | ||
| - | Two different language constructs can be used: ''elseif'' and ''switch'' in such cases. The former is linked to the well-known if-else construct; the latter is explained here more for the sake of completeness. Occasionally, using ''switch'' is more concise if several values of the same variable should be checked. | + | Two different language constructs can be used in such cases: ''elseif'' and ''switch''. The former is linked to the well-known if-else construct; the latter is explained here more for the sake of completeness. Occasionally, using ''switch'' is more concise if several values of the same variable should be checked. |
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