beforesemicolon / tutorials-files Goto Github PK

insert(element, index = 0){
        if(index > this.size) return false

        const node = this.createNode(element)

        if(index === 0){
            if(this.head){
                node.next = this.head
                this.head.prev = node

            } else {
                this.tail = node
            }
            this.head = node 
        }  else if(index === this.size){
            
            this.tail.next = node
            node.prev = this.tail
            this.tail = node

        }   else {
            const current = this.getNodeAt(index)
            const prev = current.prev

            node.prev = prev
            node.next = current
            prev.next = node
            current.prev = node
            
        }
        this.size++
        return true
    }
    
    Here is the screenshot of the error 

![Screenshot 2022-12-12 211656](https://user-images.githubusercontent.com/99618731/207046001-391a3f16-2fa4-455a-955c-5411e5c1784c.png)