Booleans
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Booleans are an essential data type used to represent truth values (true or false) in logical expressions.
A boolean is denoted by the keyword bool and can have either the value true or false.
index.go
1var myBool bool = true
The default value of a boolean is false.
Booleans become especially useful when we need to store the results of logical expressions. Logical expressions are constructed using logical and/or comparison operators.
While logical operators and expressions will be explored in detail in the next section, here's a brief introduction to the three comparison operators in Go:
| Operator | Logic |
|---|---|
< | Less Than |
> | Greater Than |
== | Equals To |
Here's a simple example of how the result of a logical expression is stored in a boolean:
index.go
123456789package main import "fmt" func main() { var value int = 7 var myBool bool = value > 5 fmt.Println(myBool) // Outputs 'true' }
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