This chapter introduces one of the most important concepts in programming — variables and data types.
Variables are used to store information in a program, such as numbers, text, and values that change while the program runs. Data types define what kind of data a variable can hold, like numbers, strings, or boolean values.
In this chapter, students will learn how to create variables, assign values, and understand different data types used in JavaScript.
By the end of this chapter, you will be able to:
- Understand what variables are and why they are important
- Create and use variables in JavaScript
- Work with different data types like numbers, strings, and booleans
- Write programs that store and process data
- Build a strong foundation for future topics like conditions, loops, and functions
This chapter is a major step toward writing real programs and becoming a confident JavaScript developer.