How to check if a Set is Empty in Go - Step by Step Examples

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How to check if a Set is Empty in Go ?

Answer

To check if a Set is empty in Go, you can compare the length of the Set to 0.

✐ Examples

1 Check if Set is Empty

In this example,

We declare a Set variable named set and initialize it with some elements, or an empty Set if there are no elements.
We check if the length of the Set set is equal to 0.
If the length is 0, it means the Set is empty; otherwise, it has elements.
We print the result to the standard output to indicate whether the Set is empty or not.

Go Program

package main

import (
	"fmt"
)

func main() {
	set := make(map[string]bool) // Or initialize with elements for a non-empty Set
	isEmpty := len(set) == 0
	if isEmpty {
		fmt.Println("The Set is empty")
	} else {
		fmt.Println("The Set is not empty")
	}
}

Output

The Set is empty

2 Check if Empty Set is Empty

In this example,

We declare an empty Set variable named emptySet.
We check if the length of the Set emptySet is equal to 0.
Since the length is 0, it means the Set is empty.
We print the result to the standard output to indicate that the Set is indeed empty.

Go Program

package main

import (
	"fmt"
)

func main() {
	emptySet := make(map[string]bool)
	isEmpty := len(emptySet) == 0
	if isEmpty {
		fmt.Println("The Set is empty")
	} else {
		fmt.Println("The Set is not empty")
	}
}

Output

The Set is empty

Summary

In this tutorial, we learned How to check if a Set is Empty in Go language with well detailed examples.

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How to check if a Set is Empty in Go - Step by Step Examples

How to check if a Set is Empty in Go ?

Answer

✐ Examples

1 Check if Set is Empty

Go Program

Output

2 Check if Empty Set is Empty

Go Program

Output

Summary

More Go Sets Tutorials