JS Linked List

function Node(task) { //  www.ja  v a  2 s .com
    this.name = task.name; 
    this.uri = task.uri
    this.nextTask = undefined; 
} 

function LinkedList() { 
    this.head = new Node({name:"head"}); 
    this.find = find; 
    this.insert = insert; 
    this.remove = remove; 
    this.findPrevious = findPrevious; 
    this.remove = remove; 
} 

function find(item) { 
    var currNode = this.head; 
    while (currNode.name != item.name) { 
        currNode = currNode.nextTask; 
    } 
    return currNode; 
} 
function insert(newElement, item) { 
    var newNode = new Node(newElement); 
    var current = this.find(item); 
    newNode.nextTask = current.nextTask; 
    current.nextTask = newNode; 
} 


//Removing Nodes from a Linked List 

function findPrevious(item) { 
    var currNode = this.head; 
    while (!(currNode.nextTask == null) && (currNode.nextTask.name != item)) { 
        currNode = currNode.nextTask; 
    } 
    return currNode; 
} 
function remove(item) { 
    var prevNode = this.findPrevious(item); 
    if (!(prevNode.nextTask == null)) { 
        prevNode.nextTask = prevNode.nextTask.nextTask; 
    } 
} 

var taskList = new LinkedList(); 
taskList.insert({name:"C",uri:"http://456"}, {name:"head"}); 
console.log(taskList)
const string = JSON.stringify(taskList.head)
console.log(JSON.parse(string))