New pretty new with this language, started code with it this week.
So my problem is the new company that I started with uses CF11 and they mainly only code with tags. I want to know if is possible to call cfset without a variable declaration.
If not what is the better way to call functions (that don't have return) with tags?
<cfset myFunction()>
I usually call my initiate functions at cfset, but they all have returning.
<cfset something = #initSomething()#>
Yes, invoking a function without capturing the result is perfectly fine. Sadly, there used to be a lot of that syntax in older CF documentation. It gave the erroneous impression you MUST capture the result of a function (and use extra pound signs everywhere). Neither is true. Even if a function does return something, you're not required to capture the result. Only if you wish to use it for something later. You're always free to invoke a function and completely ignore the result. So both of these are valid:
<!--- 1. capture result --->
<cfset result = getTimeNow()>
<!--- 2. ignore result --->
<cfset getTimeNow()>
<!--- sample function --->
<cffunction name="getTimeNow" return="date">
<cfreturn now()>
</cffunction>
Technically, there's nothing stopping you from capturing the result of a function that doesn't return anything. However, the "result" variable will be undefined, so it really serves no purpose.
<cfset result = doNothing()>
<!--- this will error --->
<cfoutput>#result#</cfoutput>
<!--- sample function --->
<cffunction name="doNothing" return="void">
<!--- function that returns nothing --->
</cffunction>