Wewill focus on **arguments** and **parameters**. In the `calculateBill()` function from the previous video, we hardcoded the tax amount. A best practice in JavaScript is to keep your code **DRY**, ...

Functions can accept zero or more arguments, depending on how they are defined. In JavaScript, a parameter in a function is a special variable that acts as a placeholder for values that are passed to ...

Every now and then I need to have a method support 2 or 3 arguments, providing a default value for one of them if only 2 are specified. My typical solution is to check the number of arguments passed ...