Question

excuse the pseudo code, my actual file is much larger:/

I want to call a function (with parameters) from inside a class. However, that function should be passed to the class as a variable.

someObject = {
    itWorked:function(answer){
       alert(answer);
    },

    plugins:{
        somePlugin:function(){

            var callback;
            this.doSomething = doSomething;

            function setCallback(c){
                callback = c;
            }

            function doSomething(){
                 var answer = "hello";
                 [callback](answer); // how do I call this?
            }

        }
    },

    widgets:{
        something:function(){
            var doIt = new someObject();
            doIt.setCallback(someObject.itWorked()); // how do I send this?
            doIt.doSomething();
        }
    }
}

So how would I pass itWorked() to the class?
And how would I call that itWorked(answer) function within the class as well as passing a variable to if?

Answer 1

Remove the parentheses to pass the function as a variable.

doIt.setCallback( someObject.itWorked );

You can then use the callback as you would any other function.

callback( answer );