FunctionCallBacks.js

/*
 * Demonstarting function callbacks
 */
    function foo(Goon) {
        console.warn("Hello from: "+Goon);
    }
    
    function galon(company){
        console.log("Greatings from: "+company);
    }

    function caller(f, g) {
        // Call the given function
        
        var company = "Yammer Inc.";
        var com = "Alternate Ltd.";
        f(company);
        g(com);
    }
    
    caller(foo, galon); // Invokes foo() and galon()