Boolean Operators

As we know, Booleans tell us whether a value or condition is true and false. We can work with Booleans using the following three operators:

• AND
• OR
• NOT

The AND Operator

In Ruby, the AND operator is represented by a double ampersand, &&. It represents what the truthiness is across two values if both are true. Consider the following sample code snippet:

var1 = true
var2 = true
var1 && var2
var1 = false
var2 = true
var1 && var2
var1 = false
var2 = false
var1 && var2

The output should look like this:

Figure 3.1: Output for the Boolean AND operator

In the preceding example, the var1 and var2 variables depict true and false Boolean states in different combinations and the && operator gives results as per the combination.

The OR Operator

In Ruby, the OR operator is represented by a double pipe, ||. It represents what the truthiness is across two values if one is true. Consider...