As in other programming languages, it is important to include comments in the code. You should comment your code for the following reasons:
The ColdFusion comment tag is similar to the HTML comment tag, except that it has three dashes instead of two:
<!--- This is a CFML comment --- >
ColdFusion comments are not returned to the browser because the ColdFusion server processes and omits the comments from the page. The user will never be able to read your comments.