Commit 0ea2423

seIncorptrekhleb

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* New function 'fromArray' Function get array of Doubly Linked List Nodes, go through and append to currently list. * New Test for new function 'fromArray' * Minor changes Minor changes about coding style.

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src/data-structures/doubly-linked-list
- DoublyLinkedList.js
- __test__
  - DoublyLinkedList.test.js

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`‎src/data-structures/doubly-linked-list/DoublyLinkedList.js‎`

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Original file line number	Diff line number	Diff line change
`@@ -213,6 +213,15 @@ export default class DoublyLinkedList {`
`213`	`213`	`return nodes;`
`214`	`214`	`}`
`215`	`215`
	`216`	`+ /**`
	`217`	`+ * @param {DoublyLinkedListNode[]} array - Array of nodes`
	`218`	`+ * @return {DoublyLinkedListNode[]}`
	`219`	`+ */`
	`220`	`+ fromArray(arr = []) {`
	`221`	`+ arr.forEach(node => this.append(node.value));`
	`222`	`+ return this;`
	`223`	`+ }`
	`224`	`+`
`216`	`225`	`/**`
`217`	`226`	`* @param {function} [callback]`
`218`	`227`	`* @return {string}`

`‎src/data-structures/doubly-linked-list/test/DoublyLinkedList.test.js‎`

Lines changed: 17 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -36,6 +36,23 @@ describe('DoublyLinkedList', () => {`
`36`	`36`	`expect(linkedList.toString()).toBe('3,2,1');`
`37`	`37`	`});`
`38`	`38`
	`39`	`+ it('should append new nodes from array', () => {`
	`40`	`+ const linkedList1 = new DoublyLinkedList();`
	`41`	`+ linkedList1.append(1);`
	`42`	`+ linkedList1.append(1);`
	`43`	`+ linkedList1.append(2);`
	`44`	`+ linkedList1.append(3);`
	`45`	`+ linkedList1.append(3);`
	`46`	`+ linkedList1.append(3);`
	`47`	`+ linkedList1.append(4);`
	`48`	`+ linkedList1.append(5);`
	`49`	`+ const array = linkedList1.toArray();`
	`50`	`+`
	`51`	`+ const linkedList2 = new DoublyLinkedList();`
	`52`	`+ linkedList2.fromArray(array);`
	`53`	`+ expect(linkedList2.toString()).toBe('1,1,2,3,3,3,4,5');`
	`54`	`+ });`
	`55`	`+`
`39`	`56`	`it('should delete node by value from linked list', () => {`
`40`	`57`	`const linkedList = new DoublyLinkedList();`
`41`	`58`

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Commit 0ea2423

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`‎src/data-structures/doubly-linked-list/DoublyLinkedList.js‎`

`‎src/data-structures/doubly-linked-list/test/DoublyLinkedList.test.js‎`

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‎src/data-structures/doubly-linked-list/DoublyLinkedList.js‎

‎src/data-structures/doubly-linked-list/__test__/DoublyLinkedList.test.js‎

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`‎src/data-structures/doubly-linked-list/DoublyLinkedList.js‎`

`‎src/data-structures/doubly-linked-list/test/DoublyLinkedList.test.js‎`