True and false

True and false logic is represented using the Boolean type, bool. Use this type when you need an on/off switch in your code. The value of a bool instance can only ever be true or false. The zero value of a bool instance is false. A “zero value” refers to the default value that a variable takes when it’s declared without an explicit initial value.

When using a comparison operator such as == or >, the result of that comparison is a bool value.

In this code example, we use comparison operators on two numbers. You’ll see that the result is a bool value:

package main
import "fmt"
func main() {
  fmt.Println(10 > 5)
  fmt.Println(10 == 5)
}

Running the preceding code shows the following output:

true
false

Exercise 3.01 – Program to measure password complexity

An online portal creates user accounts for its users and accepts passwords that are only 8 to 15 characters long. In this exercise...