Working with Operators in Go
10.26.2021
Intro
Operators allow us to perform mathematics, comparisons, and much more in programming. Go provides a great set of operators for your daily use. In this article, we will learn how to use operators in Go.
Setting Up
Let's start be creating a new file
touch main.goWe can then add the following code.
package main
import "fmt"
func main() {
fmt.Println("Hello!")
}We can run the code using the following.
go run main.goUsing Operators
In this article, we will give a brief program with an example of many operators. For a full list, we can refer to the documentation: https://golang.org/ref/spec#Operators.
Go operators consist of the following categories:
- Arithmetic
- Relational
- Logical
- Bitwise
- Assignment
- Misc
Our program below shows examples of each, with a
package main
import "fmt"
func main() {
// Arithmetic
var a int = 10
var b int = 20
fmt.Println(a + b)
fmt.Println(a * b)
a++ // increment A by itself
fmt.Println(a)
// Relational
fmt.Println(a == b)
fmt.Println(a != b)
fmt.Println(a > b)
// Logical
fmt.Println(a > b && b < a)
fmt.Println(a < b || b == a)
// Bitwise
fmt.Println(a & b)
fmt.Println(a | b)
fmt.Println(a << 2)
// Assignment
a = 20
fmt.Println(a)
a += 20
fmt.Println(a)
// Misc
fmt.Println(&b) // Memory Address
}