ColdFusion Worst Practices Part 2: Abusing Pound Signs (#)
By: Ray West on Thursday, October 8, 2009
Reader Level: 
The pound sign (#) has a special meaning in ColdFusion. It tells the application server to evaluate what is inside the matching pound signs as a variable or an expression. If the value is a variable, or can be treated as an expression or a function, ColdFusion replaces the whole thing with the result of the evaluation.
However, using # signs is not always the best choice. You should not get it the habit of using them where they are not required. Overuse of pound signs can cause the server to work too hard and eventually cause performance issues. In this article we will look at several examples of when not using the # sign is the better choice.
The ColdFusion Worst Practices Series:
ColdFusion Worst Practices - Part 1: Misuing CFOUTPUT
ColdFusion Worst Practices - Part 2: Abusing Pound Signs (#)
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