Using functions as arguments

Hi,

I want to be able to pass around functions. The problem is that something like this is not working:
function test (+,3,4)
I want the function test then apply + to 3 and 4.

So one of the ways to solve this I thought, is to change the function argument as a string, like this:
function test ("+", 3, 4)

The only problem is, how do I apply that function (which is a string now) to the variables? Or does someone have an other (better) approach?

Regards

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