Writing Conditional Logic Expressions

Within the begin CFIF tag, write an expression to define the condition to test. Expressions can include a variety of data types such as:

The conditional logic expressions that you write will usually include a combination of:

Variables - You learned about these in Chapter 4, Creating and Manipulating Variables.
ColdFusion decision functions - You learned about functions in Chapter 6, Formatting and Manipulating Data and you will use decision functions here.
ColdFusion operators - You'll learn about these here.