78 lines
2.2 KiB
Markdown
78 lines
2.2 KiB
Markdown
|
---
|
||
|
|
id: 587d8251367417b2b2512c62
|
||
|
|
title: Create a Linked List Class
|
||
|
|
challengeType: 1
|
||
|
|
videoUrl: ''
|
||
|
|
localeTitle: Создать класс связанного списка
|
||
|
|
---
|
||
|
|
|
||
|
|
## Description
|
||
|
|
undefined
|
||
|
|
|
||
|
|
## Instructions
|
||
|
|
undefined
|
||
|
|
|
||
|
|
## Tests
|
||
|
|
<section id='tests'>
|
||
|
|
|
||
|
|
```yml
|
||
|
|
tests:
|
||
|
|
- text: Класс <code>LinkedList</code> должен иметь метод <code>add</code> .
|
||
|
|
testString: 'assert((function(){var test = new LinkedList(); return (typeof test.add === "function")}()), "Your <code>LinkedList</code> class should have a <code>add</code> method.");'
|
||
|
|
- text: Класс <code>LinkedList</code> должен назначить <code>head</code> первому добавленному узлу.
|
||
|
|
testString: 'assert((function(){var test = new LinkedList(); test.add("cat"); return test.head().element === "cat"}()), "Your <code>LinkedList</code> class should assign <code>head</code> to the first node added.");'
|
||
|
|
- text: ''
|
||
|
|
testString: 'assert((function(){var test = new LinkedList(); test.add("cat"); test.add("dog"); return test.head().next.element === "dog"}()), "The previous <code>node</code> in your <code>LinkedList</code> class should have reference to the newest node created.");'
|
||
|
|
- text: <code>size</code> вашего класса <code>LinkedList</code> должен равняться количеству узлов в связанном списке.
|
||
|
|
testString: 'assert((function(){var test = new LinkedList(); test.add("cat"); test.add("dog"); return test.size() === 2}()), "The <code>size</code> of your <code>LinkedList</code> class should equal the amount of nodes in the linked list.");'
|
||
|
|
|
||
|
|
```
|
||
|
|
|
||
|
|
</section>
|
||
|
|
|
||
|
|
## Challenge Seed
|
||
|
|
<section id='challengeSeed'>
|
||
|
|
|
||
|
|
<div id='js-seed'>
|
||
|
|
|
||
|
|
```js
|
||
|
|
function LinkedList() {
|
||
|
|
var length = 0;
|
||
|
|
var head = null;
|
||
|
|
|
||
|
|
var Node = function(element){
|
||
|
|
this.element = element;
|
||
|
|
this.next = null;
|
||
|
|
};
|
||
|
|
|
||
|
|
this.head = function(){
|
||
|
|
return head;
|
||
|
|
};
|
||
|
|
|
||
|
|
this.size = function(){
|
||
|
|
return length;
|
||
|
|
};
|
||
|
|
|
||
|
|
this.add = function(element){
|
||
|
|
// Only change code below this line
|
||
|
|
|
||
|
|
// Only change code above this line
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
```
|
||
|
|
|
||
|
|
</div>
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
</section>
|
||
|
|
|
||
|
|
## Solution
|
||
|
|
<section id='solution'>
|
||
|
|
|
||
|
|
```js
|
||
|
|
// solution required
|
||
|
|
```
|
||
|
|
</section>
|