ColdFusion variables and expressions are the building blocks of most ColdFusion development. ColdFusion variables are typeless upon creation, and the type is then cast when used with an operator. Variable prefixes determine the scope of the variable, and using them is almost always a good idea. <CFSET> and <CFPARAM> are essential tools in creating variables. Using the request scope is a very helpful way to extend the places where local variables can be used. Functions can be used to return manipulated variable values. Both constant and regular expression string manipulation are possible in ColdFusion. Sample Questions
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