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



How to Sort an Array in Descending Order in Go ?

Answer

To sort an array in descending order in Go, you can use the `sort.Slice` function with a custom comparison function.



✐ Examples

1 Sort Array of Integers in Descending Order

In this example,

  1. Create an array of integers, for example, numbers.
  2. Use the sort.Slice function with a custom comparison function to sort the array of integers in descending order.
  3. Print the sorted array to see the result.

Go Program

package main

import (
	"fmt"
	"sort"
)

func main() {
	numbers := []int{5, 2, 8, 1, 9}
	sort.Slice(numbers, func(i, j int) bool {
		return numbers[i] > numbers[j]
	})
	fmt.Println(numbers)
}

Output

[9 8 5 2 1]

2 Sort Array of Strings in Descending Order

In this example,

  1. Create an array of strings, for example, words.
  2. Use the sort.Slice function with a custom comparison function to sort the array of strings in descending order.
  3. Print the sorted array to see the result.

Go Program

package main

import (
	"fmt"
	"sort"
)

func main() {
	words := []string{"apple", "banana", "cherry", "date"}
	sort.Slice(words, func(i, j int) bool {
		return words[i] > words[j]
	})
	fmt.Println(words)
}

Output

[date cherry banana apple]

Summary

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




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  29. How to Reverse an Array in Go ?
  30. How to Shuffle an Array in Go ?
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  32. How to Filter Elements of an Array based on a Condition in Go ?
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