Chapter 10. More on variables

Table of Contents

1. Types of variables
1.1. General assignment of values
1.2. Using the declare built-in
1.3. Constants
2. Array variables
2.1. Creating arrays
2.2. Dereferencing the variables in an array
2.3. Deleting array variables
2.4. Examples of arrays
3. Operations on variables
3.1. Arithmetic on variables
3.2. Length of a variable
3.3. Transformations of variables
4. Summary
5. Exercises


In this chapter, we will discuss the advanced use of variables and arguments. Upon completion, you will be able to:

  • Declare and use an array of variables

  • Specify the sort of variable you want to use

  • Make variables read-only

  • Use set to assign a value to a variable