How to Sort an Array in Go - Step by Step Examples

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How to Sort an Array in Go ?

Answer

To sort an array in Go, you can use the built-in sort package.

✐ Examples

1 Sort Integer Array in Ascending Order

In this example,

We create an integer array named numbers with values 5, 2, 8, 1, 6.
We use the sort.Ints() function from the sort package to sort the array in ascending order.
The sort.Ints() function sorts the array elements in ascending order.
Finally, we print the sorted array numbers to the console.

Go Program

package main

import (
	"fmt"
	"sort"
)

func main() {
	numbers := []int{5, 2, 8, 1, 6}
	sort.Ints(numbers)
	fmt.Println("Sorted array in ascending order:", numbers)
}

Output

Sorted array in ascending order: [1 2 5 6 8]

2 Sort Integer Array in Descending Order

In this example,

We create an integer array named numbers with values 5, 2, 8, 1, 6.
We use the sort.Sort() function with a custom sort.Interface implementation to sort the array in descending order.
The custom sort.Interface implementation sorts the array elements in descending order.
Finally, we print the sorted array numbers to the console.

Go Program

package main

import (
	"fmt"
	"sort"
)

type Descending []int

func (d Descending) Len() int { return len(d) }
func (d Descending) Less(i, j int) bool { return d[i] > d[j] }
func (d Descending) Swap(i, j int) { d[i], d[j] = d[j], d[i] }

func main() {
	numbers := []int{5, 2, 8, 1, 6}
	sort.Sort(Descending(numbers))
	fmt.Println("Sorted array in descending order:", numbers)
}

Output

Sorted array in descending order: [8 6 5 2 1]

Summary

In this tutorial, we learned How to Sort an Array in Go language with well detailed examples.

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How to Sort an Array in Go - Step by Step Examples

How to Sort an Array in Go ?

Answer

✐ Examples

1 Sort Integer Array in Ascending Order

Go Program

Output

2 Sort Integer Array in Descending Order

Go Program

Output

Summary

More Go Arrays Tutorials