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Golang Assignment Operators
Last Updated : April 19, 2025
Assignment operators are used for assigning the expressions or values to the variable/ constant etc. These operators assign the result of the right-side expression to the left-side variable or constant. The "=" is an assignment operator. Assignment operators can also be the combinations of some other operators (+, -, *, /, %, etc.) and "=". Such operators are known as compound assignment operators.
List of Assignment Operators
| Operator |
Description |
Example
x:=5
y:=3 |
| Assignment (=) |
It assigns the result of the expression written on the right side to the variable written on the left side. |
x = 10 or x = y+10 or x = x+5, etc. |
| Add and Assignment (+=) |
It is the combination of '+' and '=' operators, it adds the given value with the current value of the variable and assigns it to the variable. |
x +=y is equivalent to x = x+y |
| Subtract and Assignment (-=) |
It is the combination of '-' and '=' operators, it subtracts the given value with the current value of the variable and assigns it to the variable. |
x -=y is equivalent to x = x-y |
| Multiply and Assignment (*=) |
It is the combination of '*' and '=' operators, it multiplies the given value with the current value of the variable and assigns it to the variable. |
x *=y is equivalent to x = x*y |
| Divide and Assignment (/=) |
It is the combination of '/' and '=' operators, it divides the given value with the current value of the variable and assigns it to the variable. |
x /=y is equivalent to x = x/y |
| Modulus and Assignment (%=) |
It is the combination of '%' and '=' operators, it finds the remainder of the current value of the variable with the given value and assigns it to the variable. |
x %=y is equivalent to x = x%y |
| Bitwise AND Assignment (&=) |
It is the combination of '&' and '=' operators, it performs the Bitwise AND operation with the current value of the variable and the given value and assigns the result to the variable. |
x &=y is equivalent to x = x&y |
| Bitwise OR Assignment (|=) |
It is the combination of '|' and '=' operators, it performs the Bitwise OR operation with the current value of the variable and the given value and assigns the result to the variable. |
x |=y is equivalent to x = x|y |
| Bitwise XOR Assignment (^=) |
It is the combination of '^' and '=' operators, it performs the Bitwise XOR operation with the current value of the variable and the given value and assigns the result to the variable. |
x ^=y is equivalent to x = x^y |
| Bitwise Left Shift Assignment (<<=) |
It is the combination of '<<' and '=' operators, it performs the Bitwise Left-shift operation with the current value of the variable and the given value and assigns the result to the variable. |
x <<=y is equivalent to x = x<<y |
| Bitwise Right Shift Assignment (>>=) |
It is the combination of '>>' and '=' operators, it performs the Bitwise Left-shift operation with the current value of the variable and the given value and assigns the result to the variable. |
x >>=y is equivalent to x = x>>y |
Example of Assignment Operators
The below Golang program is demonstrating the example of assignment operators.
// Golang program demonstrate the
// example of assignment operators
package main
import "fmt"
func main() {
x := 5
y := 3
x += y
fmt.Println("x:", x)
x -= y
fmt.Println("x:", x)
x *= y
fmt.Println("x:", x)
x /= y
fmt.Println("x:", x)
x %= y
fmt.Println("x:", x)
x &= y
fmt.Println("x:", x)
x |= y
fmt.Println("x:", x)
x <<= y
fmt.Println("x:", x)
x >>= y
fmt.Println("x:", x)
}
Output:
x: 8
x: 5
x: 15
x: 5
x: 2
x: 2
x: 3
x: 24
x: 3
Go Assignment Operators Exercise
Select the correct option to complete each statement about assignment operators in Go.
- The operator ___ is used to assign a value to a variable in Go.
- The operator ___ adds a value to the existing variable in Go.
- The operator ___ subtracts a value from the existing variable in Go.
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