PRDV401: Introduction to JavaScript I

A JavaScript program needs to use values, and that is where variables come into play. A program stores data in variables and assigns a name to refer to them in your program. In this section, we'll look at how to "declare", "initialize", and "update" variables in JavaScript.

After reading this section, consider these questions: 

• How would programs be written without variables?
• What is the difference between "declaring" and "initializing" a variable?