# I don't get how FormFunction works

GROUPS:
 I tried to get FormFunction[] to work, but I do not get, how the inputs are used in the actual function I define: simpleFunc[basis_, exponent_] := basis ^ exponent foFuSiFu = FormFunction[{"Basis" -> "Number", "Exponent" -> "Number"},simpleFunc] Then entering numbers into the form and evaluating it by foFuSiFu[] Does not give my anything and that drives me crazy.What am I doing wrong?
 Joel Klein 2 Votes The second argument to FormFunction is function that expects a single Association (as is also true of APIFunction). The arguments coming to the FormFunction are available as named slot parameters, written like #Basis. It is not recommended to use uppercase letters to begin symbols, so I would also rename your FormFunction parameters to begin with a lowercase letter. Based on I would rewrite your code as follows: simpleFunc[basis_, exponent_] := basis ^ exponent foFuSiFu = FormFunction[{"basis" -> "Number", "exponent" -> "Number"}, simpleFunc[#basis, #exponent]&] 
 I did copy your version and this still does not work in my notebook in Wolfram Cloud. When I enter values into the form and try to evaluate it with foFuSiFu[] it gives me an error every time. "The server is experiencing unexpected issues and could not process your request. Please try again in a few minutes." When I do not use uppercase variables I would also need to change the name shown in the CloudDeploy. How do I change the label shown in the deployed form? (The examples in the documentation center have uppercase Variables to achieve that, which brought me to doing it that way to)