How to Initialize a Set in Go - Step by Step Examples

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How to Initialize a Set in Go ?

Answer

To initialize a set in Go, you can use a map with keys of the desired type and boolean values.

✐ Examples

1 Initialize an Empty Set Using a Map

In this example,

We use a map to represent a set-like data structure in Go.
We declare a variable named set1 and assign it an empty map using the make function. The keys of this map are of type string and the values are of type bool.
The empty map represents an empty set.
We then print the set1 to the console to verify its contents. An empty map in Go is represented as map[].

Go Program

package main

import "fmt"

func main() {
    set1 := make(map[string]bool)
    fmt.Println("Contents of set1:", set1)
}

Output

Contents of set1: map[]

2 Initialize a Set with Elements Using a Map

In this example,

We use a map to represent a set-like data structure in Go.
We declare a variable named set2 and assign it a map with elements using the make function. The keys of this map are of type string and the values are set to true.
We then print the set2 to the console to verify its contents.

Go Program

package main

import "fmt"

func main() {
    set2 := make(map[string]bool)
    set2["apple"] = true
    set2["banana"] = true
    set2["cherry"] = true
    fmt.Println("Contents of set2:", set2)
}

Output

Contents of set2: map[apple:true banana:true cherry:true]

Summary

In this tutorial, we learned How to Initialize a Set in Go language with well detailed examples.

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How to Initialize a Set in Go - Step by Step Examples

How to Initialize a Set in Go ?

Answer

✐ Examples

1 Initialize an Empty Set Using a Map

Go Program

Output

2 Initialize a Set with Elements Using a Map

Go Program

Output

Summary

More Go Sets Tutorials