Golang Program to Demonstrate Argument Passing to Block

In this article, we are going to learn how to demonstrate the argument to block using the user-defined function, iterations, and square of numbers . A block is created using curly braces with a definite begin and end braces. The different operations are performed inside the braces.

Algorithm

• Step 1 ? Import the required packages in the program

• Step 2 ? Create a main function and in there create a slice

• Step 3 ? Use a function to pass the argument and print the values with the help of iteration

• Step 4 ? Print statement is executed Println function from fmt package

Example 1

In this example, we will write a Golang program to demonstrate the argument passing to block using an anonymous function in which the slice values will be passed as arguments and those values will be printed on the console

package main

import "fmt"

func main() {
	
   values := []int{10, 20, 30, 40, 50}

   for _, value := range values {
      func(n int) {
         fmt.Println("Value:", n)
      } (value)
   }
}

Output

Value: 10
Value: 20
Value: 30
Value: 40
Value: 50

Example 2

In this illustration, we will write a Golang program to demonstrate the argument passing to block using iteration, here a slice of strings will be created in the block which will be iterated and printed on the console.

package main

import "fmt"

func main() {
	
   name_values := []string{"Varun", "Rajat", "Pulkit", "Kajal"}
	
   for _, name := range name_values {
      printName(name)
   }
}
func printName(name string) {
   fmt.Println("Name:", name) 
}

Output

Name: Varun
Name: Rajat
Name: Pulkit
Name: Kajal

Example 3

In this example, we will write a Golang program to demonstrate the argument passing to block using square of numbers.

package main

import "fmt"

func main() {
	
   demo_block := func(val int) {
      fmt.Printf("The square of %d is %d\n", val, val*val)
   }
	
   demo_block(6)
	
   demo_block(8)
}

Output

The square of 6 is 36
The square of 8 is 64

Conclusion

We compiled and executed the program of demonstrating the argument passing to block using three examples. In the first example, we used an anonymous function to pass the argument, in the second example we created a function which is called every time loop runs and in the third example, we squared the values taken in the argument to depict the use of block.