Q:

Golang program to iterate a slice using \'range\' in \'for\' loop

belongs to collection: Golang Slices Programs

YasminRadwan26
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2022-07-03
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In this program, we will create a slice from an array of integers and then iterate the slice elements using the range in the "for" loop and print on the console screen.

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YasminRadwan26
2022-07-03
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Program/Source Code:

The source code to iterate a slice using the range in the "for" loop is given below. The given program is compiled and executed successfully.

//Golang program to iterate a slice using "range" in the "for" loop. 
package main  
import "fmt"  

func main() {  
   //Create an integer array
    arr:= [10]int{10,20,30,40,50,60,70,80,90,100}  
   
   //create slice of from index 2 till index 4(5-1).
   intSlice := arr[2:5]  

  fmt.Println("Slice elements: ")
  for index, ele := range intSlice {
    fmt.Printf("Index = %d,element = %d\n", index, ele)
  }
}

Output:

Slice elements:
Index = 0,element = 30
Index = 1,element = 40
Index = 2,element = 50

Explanation:

In the above program, we declare the package main. The main package is used to tell the Go language compiler that the package must be compiled and produced the executable file. Here, we imported the fmt package that includes the files of package fmt then we can use a function related to the fmt package.

In the main() function, we created an array of integers with 10 elements and then create the slice from the array. After that, we printed the array elements using range in "for" loop on the console screen.

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