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Solution Review: Construct a Double-Linked List

Solution Review: Construct a Double-Linked List

This lesson discusses the solution to the challenge given in the previous lesson.

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package main
import (
  "container/list"
  "fmt"
)
  
func insertListElements(n int)(*list.List){   // add elements in list from 1 to n
  lst := list.New()
  for i:=1;i<=n;i++{
    lst.PushBack(i)         // insertion here
  } 
  return lst
}
func main() {
  n := 5                    // total number of elements to be inserted
  myList := insertListElements(n) // function call
  for e := myList.Front(); e != nil; e = e.Next() {
		fmt.Println(e.Value)  // printing values of list
	}
}

In the code above, at line 4, we import a package container/list because it is used for the implementation of doubly-linked lists. Look at the header of function insertListElements at line 8: func insertListElements(n int)(*list.List). This function takes a parameter n and is returning a double-linked list. At line 9, we are making a new but empty doubly-linked list lst using list.New() function. Now we have a for loop that will run n times. The ...