Where should Funcs/Actions/etc. go in code?

Question

As the title says. Where do they go? they're variables, but they're also code...

Answer 1

They should go where they're needed. Can you clarify your question?

A variable that holds a reference to a lambda (or any Delegate) is still a variable. Treat it like a variable.

That doesn't mean you HAVE to use variables. You can just specify the lambda inline in many cases.

Answer 2

I'd put them with the rest of your variables, since they can be reassigned and changed just like any other variable. Like this:

class Test
{
    string s = "abcdefg";
    int one = 1;
    Func<int> myFunc;

    void MyMethod()
    {
        int x = 5;
        float f = 3.86;
        Action<string> a;
    }
}

I'm not quite sure what else (or where else) you would mean?

Answer 3

An example:

private Func<bool> isFooOn = () =>
{
    //do something
};