Function Parameters

    // food prices
    var beer_cost = 6.75; 
    var burger_cost = 5.00; 
    var pop_cost = 3.00;
    
    // user’s money
    var account_balance = 15.75;
    
    // drink beer
    function drink_beer() {
        account_balance = account_balance - beer_cost; 
        console.log(account_balance);
    }
     
    // eat burger
    function eat_burger() {
        account_balance = account_balance - burger_cost; 
        console.log(account_balance);
    }
    
    // drink pop
    function drink_pop(){
        account_balance = account_balance - pop_cost; 
        console.log(account_balance);
    }
    
    // visit carnival, eat, and drink
    var mealList = [drink_beer, drink_pop, eat_burger, drink_beer]; 
    function visitCarnival (mList, msg) {
        for(var i=0, num=mList.length; i<num; i++){ 
            mList[i]( );
        }
    }

    // calling function 
    visitCarnival(mealList, "Hello");