javascript-data-structures-and-algorithms | Exercises , algorithms | Learning library

by albinotonnina JavaScript Version: Current License: No License

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kandi X-RAY | javascript-data-structures-and-algorithms Summary

javascript-data-structures-and-algorithms is a JavaScript library typically used in Tutorial, Learning, Example Codes applications. javascript-data-structures-and-algorithms has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

Exercises, algorithms

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javascript-data-structures-and-algorithms has a low active ecosystem.

It has 28 star(s) with 9 fork(s). There are 3 watchers for this library.

It had no major release in the last 6 months.

There are 0 open issues and 1 have been closed. On average issues are closed in 24 days. There are 7 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of javascript-data-structures-and-algorithms is current.

Quality

javascript-data-structures-and-algorithms has no bugs reported.

Security

javascript-data-structures-and-algorithms has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

javascript-data-structures-and-algorithms does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

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javascript-data-structures-and-algorithms releases are not available. You will need to build from source code and install.

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javascript-data-structures-and-algorithms Key Features

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javascript-data-structures-and-algorithms Examples and Code Snippets

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Community Discussions

Trending Discussions on javascript-data-structures-and-algorithms

How to implement deque data structure in javascript?

QUESTION

How to implement deque data structure in javascript?

Asked 2020-Feb-04 at 14:13

I'm Learning data structure with javascript

and my focus now on how to implement deque?

Edite: from comments below I get useful directions on how to implement deque based array. Is there a direction how to implement deque based object using class ?

I get understand some points like I need :

addFront()
removeFront()
peekFront()

addBack()
removeBack()
peekBack()

but I'm confused about some points :

how many pointers I need ? at least I know from queue I need two(head-tail) pointer but not sure if I need more in deque
which data type in javascript convenient in this case as a base? I saw some tutors in youtube talking about circular array for example which unknown for me in JS.

edite2:

I was following a book called: learning javascript data structures and algorithms 3rd edition

in chapter5 of this book the author started to implement Deque based on object only and some variables

but I didn't understand how he did that because the code encrypted but I can still reach to his files from and test his approach github repository

I can say that @trincot answer very close of book author approach

but when I compare the results I get this [1 = author - 2 = @trincot] :

according to the book index taking about linked list comes in chapter6 so I didn't expect his solution will be based on something he didn't mentioned before

plz if I miss any point I will be grateful to tell me it ... thanks

...

ANSWER

Answered 2020-Feb-04 at 13:27

As stated in comments, JavaScript has native support for deque operations via its Array class/prototype: push, pop, shift, unshift.

If you still want to write your own implementation, then you can go for a doubly linked list, where you just need two "pointers". It should be said that in JavaScript we don't really speak of pointers, but of objects. Variables or properties that get an object as value, are in fact references in JavaScript.

Alternatively, you can go for a circular array. Since in JavaScript standard Arrays are not guaranteed to be consecutive arrays as for example is the case in C, you don't really need to use an Array instance for that. A plain object (or Map) will do.

So here are two possible implementations:

Doubly Linked List

Source https://stackoverflow.com/questions/60052873

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install javascript-data-structures-and-algorithms

You can download it from GitHub.

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