| Contents > Developing ColdFusion MX Applications > Elements of CFML > Functions |
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Functions typically manipulate data and return a result. CFML includes over 250 built-in functions. You can also use CFScript to create user-defined functions (UDFs), sometimes referred to as custom functions.
Functions have the following general form:
functionName([argument1[, argument2]]...)
Some functions, such as the Now function take no arguments. Other functions require one or more comma-separated arguments and can have additional optional arguments. All ColdFusion functions return a value. For example, Round(3.14159) returns the value 3.
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| Contents > Developing ColdFusion MX Applications > Elements of CFML > Functions |
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