Can a Golang function return multiple values?
Apr 13, 2024 pm 02:42 PM
Yes, Go functions can return multiple values ??by returning a tuple, which is an immutable value that can contain different types of data.
#Can a Go function return multiple values?
Go functions can return multiple values ??by returning a tuple. A tuple is an immutable value that can contain different types of data.
Syntax:
func functionName() (returnType1, returnType2, ..., returnTypeN) {
// ...
return value1, value2, ..., valueN
}Example:
func getMinMax(numbers []int) (int, int) {
min := numbers[0]
max := numbers[0]
for _, n := range numbers {
if n < min {
min = n
}
if n > max {
max = n
}
}
return min, max
}Let us use a practical case to demonstrate how to use return multiple values Function:
Case: Find the maximum and minimum value in an array
package main
import "fmt"
func getMinMax(numbers []int) (int, int) {
min := numbers[0]
max := numbers[0]
for _, n := range numbers {
if n < min {
min = n
}
if n > max {
max = n
}
}
return min, max
}
func main() {
numbers := []int{1, 3, 5, 2, 4}
min, max := getMinMax(numbers)
fmt.Println("Minimum:", min)
fmt.Println("Maximum:", max)
}Output:
Minimum: 1 Maximum: 5
In this case, The getMinMax function returns a tuple containing the minimum and maximum values ??in the array. The main function then gets the returned value by unpacking the tuple.
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