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linked list part
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class LinkedList { | |
constructor() { | |
this.headNode = null; | |
this.currNode = null; | |
} | |
append(data) // метод добавления элемента | |
{ | |
var newNode = new Node(); // создаём новый элемент | |
newNode.data = data; // вводим в него данные | |
if(null == headNode) // если это первый элемент в списке | |
{ | |
newNode.next = newNode; | |
newNode.prev = newNode; | |
headNode = newNode; | |
currNode = newNode; | |
} | |
else | |
{ | |
currNode.next = newNode; | |
headNode.prev = newNode; | |
newNode.next = headNode; | |
newNode.prev = currNode; | |
currNode = newNode; | |
} | |
} | |
head() { | |
return this.headNode; | |
} | |
tail() { | |
return this.headNode.prev; | |
} | |
} |
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