Download PDF by Michael Dinowitz, Judith Dinowitz: Adobe Coldfusion Anthology

By Michael Dinowitz, Judith Dinowitz

ISBN-10: 1430272147

ISBN-13: 9781430272144

ISBN-10: 1430272155

ISBN-13: 9781430272151

Something has beleaguered the ColdFusion atmosphere: an absence of deep wisdom. This booklet is a welcome palliative to that. if you are a significant ColdFusion programmer, procuring this e-book could be a no brainer.

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Additional resources for Adobe Coldfusion Anthology

Example text

Cfc feature has truly added a good deal of power to our ColdFusion applications. It pulls together all the pieces of an application into a single, streamlined template that provides us with functionality we previously didn’t have. We can finally determine how many sessions are active in an application. We can determine when a session ends and when an application times out. We can determine both the start time and end time of any application or session. We have these new powers and the benefit of a much more organized application structure.

This has been known to happen when someone creates a UDF and then uses it to set a variable of the same name, as in this example: One exception to this behavior is when two UDFs of the same name are defined in the same template. Doing this will always throw a compile-time error, preventing the template from running at all. This will happen no matter how many variables of the same name exist in the template or where they are defined. When a standard variable is created with a period within the variable name, ColdFusion will assume that what comes before the period is a structure to which that variable will be assigned.

The output attribute set to false: Returns nothing. If the output attribute is used, it must always have a Boolean value. Any other value, including no value, will cause an error. There is a disagreement in the community over whether a UDF should output data. On one side, people say that a UDF should be limited to data processing, and that any data that it would output should instead be returned as a variable and output by its caller. On the other side are those people who feel that there is no reason why a UDF should not be used to display content.

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Adobe Coldfusion Anthology by Michael Dinowitz, Judith Dinowitz


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