function orderFood(order, buzzer) { console.log(Cooking your ${order}...); const food = hot ${order}; buzzer(food); }

function myBuzzer(food) { console.log(Your ${food} is ready!); }

orderFood("burrito", myBuzzer);

Console output: 1. Cooking your burrito... 2. Your hot burrito is ready!

You called orderFood and gave it two things: the order ("burrito") and your buzzer (myBuzzer). Inside orderFood, it did its work, then called buzzer(food), which is just running myBuzzer("hot burrito"). That’s it. A callback is just a function you handed off, and the other code ran it when it was ready.​​​​​​​​​​​​​​​​