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How to check if a Set contains all the items of Another Set in Go

How to check if a Set contains all the items of Another Set in Go ?

Answer

To check if a Set contains all the items of another Set in Go, you can use map data structure.


✐ Examples

1 Check if Set Contains All Items

In this example,

  1. We define two maps representing Sets named set1 and set2.
  2. We iterate over each key in set2 and check if it exists in set1.
  3. If any key from set2 is not found in set1, then set1 does not contain all items of set2.
  4. Finally, we print the result to the console.

Go Program

package main

import (
	"fmt"
)

func main() {
	// Define Sets with items
	set1 := map[string]bool{"apple": true, "banana": true, "orange": true, "grape": true, "melon": true}
	set2 := map[string]bool{"banana": true, "orange": true}

	// Check if set1 contains all items of set2
	containsAllItems := true
	for key := range set2 {
		if _, exists := set1[key]; !exists {
			containsAllItems = false
			break
		}
	}

	// Print result
	fmt.Printf("Does set1 contain all items of set2? %t\n", containsAllItems)
}

Output

Does set1 contain all items of set2? true

2 Check if Set Does Not Contain All Items

In this example,

  1. We define two maps representing Sets named set1 and set2.
  2. We iterate over each key in set2 and check if it exists in set1.
  3. If any key from set2 is not found in set1, then set1 does not contain all items of set2.
  4. Finally, we print the result to the console.

Go Program

package main

import (
	"fmt"
)

func main() {
	// Define Sets with items
	set1 := map[string]bool{"apple": true, "banana": true, "orange": true, "grape": true, "melon": true}
	set2 := map[string]bool{"banana": true, "peach": true}

	// Check if set1 contains all items of set2
	containsAllItems := true
	for key := range set2 {
		if _, exists := set1[key]; !exists {
			containsAllItems = false
			break
		}
	}

	// Print result
	fmt.Printf("Does set1 contain all items of set2? %t\n", containsAllItems)
}

Output

Does set1 contain all items of set2? false

Summary

In this tutorial, we learned How to check if a Set contains all the items of Another Set in Go language with well detailed examples.


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