How do I remove duplicate values from slice with Go Lang
Remove Duplicates from Go Slice| Learn to efficiently remove duplicate values from a slice in Go using three simple steps. Full tutorial on rrtutors.com.
Last updated Dec 05, 2021
In this article, the program to remove duplicates is created with Go programming language.
These are the steps to remove duplicates.
- Create a map and slice. Map is used to store key value pairs whilst slice is used to store the result.
- Insert every key value pairs into map.
- Get all keys from map then store into slice.
This is the implementation.
func removeDuplicates(numbers []int) []int { // create a slice to store the result of removed duplicates var result []int = []int{} // create a map to store key value pairs var removed map[int]int = map[int]int{} // insert key value pairs into map for _, number := range numbers { removed[number] = number } // get all keys from map for key := range removed { result = append(result, key) } // return the result return result } |
The removeDuplicates() is used in main function.
package main import ( "fmt" ) func main() { var numbers []int = []int{5, 6, 1, 9, 1, 3, 7, 3, 9, 7, 6, 4, 3, 2, 9, 9, 9} var result []int = removeDuplicates(numbers) fmt.Println("The result: ", result) } func removeDuplicates(numbers []int) []int { var result []int = []int{} var removed map[int]int = map[int]int{} for _, number := range numbers { removed[number] = number } for key := range removed { result = append(result, key) } return result } |
Output.
The result: [7 4 2 5 6 1 9 3]
I hope this article is helpful to learn about creating program to remove duplicates in Go.