* added DecimalToHex

* added luhn's checksum algorithm

* deleted checksums

* Update keyFinder.js

modified used the suitable identifier for the variables

* Update keyFinder.js

1. modified the identifiers and used the suitable identifiers for the variables
2. leave the loop when a key is match and found to increase the speed of searching in this stage of development
3. return the key number if founded, return 0 if found nothing

* Update keyFinder.js

a sub-function is used to assist the keyfinder to find the key

* Update keyFinder.js

Finally, there are several changes in the function keyFinder(str) that make it works well

* Update keyFinder.js

Add some key words to the wordbank to increase the chance of the matching.

* fixed and added test cases

* fixed alert

* Add wiggle sort

* adding Graph data structure

* Added SHA-1 and SHA-256 hashing algorithms (TheAlgorithms#83)

* Added SHA-1 and SHA-256 hashing algorithms

* Fixed typos in comments

* Removed redundant unsigned integer casting

* Added Jump Search to readme.md

* Added JumpSearch algorithm

* Update jumpSearch.js

* Added Semicolon to Avoid Auto Semicolon Insertion

This fixes a [recommendation on lgtm](https://lgtm.com/projects/g/TheAlgorithms/Javascript/snapshot/9fe2ca0492e0813c5e5486498c6b53a00c4a61e3/files/Sorts/bucketSort.js?sort=name&dir=ASC&mode=heatmap)

* Fixed Whitespace, Operators, and Quotes to Comply with JSLint

I modified the whitespace in the files and changed single quotes to double quotes.

I also changed some `==` and `!=` operators to `===` and `!==` to comply with JSLint.

* Create find_lcm.js

- Created find_lcm.js
- Created maths folder

* Create average_mean.js

* Create factorial.js

This program calculates and displays the factorial for a user-input number.

* Create abs.js

This script calculates absolute value.

* Made "use strict" Global

* Made "use strict" Global & Made JSLint Happy

* Kadane Algo is added

* Issue fixed

* GitHub Action to test Javascript

* Update nodejs.yml

* cd linear-algebra-javascript

* Create update_directory_md.yml

* updating DIRECTORY.md

* update_directory_md.yml: Remove GH Actions workaround

* Graph Theory

* Delete Graphs

* Graph

* Dijkstra Smallest Path

* DijkstraSmallestPath

after fixing some errors.

* Topological Sort 

directed graphs

* correcting name of file

* updating DIRECTORY.md

* doublylinkedlist

* add-doublylinkedlist

* add-doublylinkedlist

* change in Directory.md

* updating DIRECTORY.md

* update (#1)

* Graph Theory

* Delete Graphs

* Graph

* Dijkstra Smallest Path

* DijkstraSmallestPath

after fixing some errors.

* Topological Sort 

directed graphs

* correcting name of file

* updating DIRECTORY.md

* doublylinkedlist

* add-doublylinkedlist

* add-doublylinkedlist

* change in Directory.md

* updating DIRECTORY.md

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* Contributing guidelines

* npx standard --fix

* Update CONTRIBUTING.md

* Update README.md

* Update CONTRIBUTING.md

Co-authored-by: Christian Clauss <cclauss@me.com>

* Update CONTRIBUTING.md

Co-authored-by: Christian Clauss <cclauss@me.com>

* Update CONTRIBUTING.md

Co-authored-by: Christian Clauss <cclauss@me.com>

* Update CONTRIBUTING.md

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* Update CONTRIBUTING.md

Co-authored-by: Christian Clauss <cclauss@me.com>

* Update CONTRIBUTING.md

Co-authored-by: Christian Clauss <cclauss@me.com>

* Update CONTRIBUTING.md

Co-authored-by: Christian Clauss <cclauss@me.com>

* Update CONTRIBUTING.md

Co-authored-by: Christian Clauss <cclauss@me.com>

* Update CONTRIBUTING.md

Co-authored-by: Christian Clauss <cclauss@me.com>

* Update CONTRIBUTING.md

Co-authored-by: Christian Clauss <cclauss@me.com>

* Update CONTRIBUTING.md

Co-authored-by: Christian Clauss <cclauss@me.com>

* Update CONTRIBUTING.md

Co-authored-by: Christian Clauss <cclauss@me.com>

* Update CONTRIBUTING.md

Co-authored-by: Christian Clauss <cclauss@me.com>

* Update CONTRIBUTING.md

Co-authored-by: Christian Clauss <cclauss@me.com>

* Add standard to our testing

Run in allow failures mode until the non-compliant files are fixed.

* npx standard || true

* Update README.md

* Fixing non compliant files (Ciphers, Conversions and Data Structures)

* Update nodejs.yml

* Data Structures/Graph

* sorts/

* fix broken link

* search/

* search/ (TheAlgorithms#143)

* factorial.js: Standardjs fixes

Related to TheAlgorithms#139

* /* global alert, prompt */

* find_lcm.js: Standardjs fixes

* abs.js: abs_val() --> absVal() for standardjs (TheAlgorithms#144)

* find_lcm.js: Standardjs fixes (TheAlgorithms#146)

* Update factorial.js

* SHA256.js: Standardjs fixes

* factorial.js: /* global prompt */

* Update nodejs.yml

* DijkstraSmallestPath.js: Standardjs fixes (TheAlgorithms#147)

* Fixed typo in CONTRIBUTING.md file (TheAlgorithms#148)

* Fixed typo in CONTRIBUTING.md file

* Update CONTRIBUTING.md

Co-authored-by: vinayak <itssvinayak@gmail.com>

* math/

* sort/

* Add Pascal's triangle. (TheAlgorithms#149)

* Add Pascal's triangle.

* Update pascalTriangle.js

* Update pascalTriangle.js

Co-authored-by: vinayak <itssvinayak@gmail.com>

* updating DIRECTORY.md

* Javascript/linear-algebra-javascript

* Update nodejs.yml

* Update nodejs.yml

* Update nodejs.yml

* Trailing space ;-)

* Update README.md

* adding an implementation of a queue using 2 stacks (TheAlgorithms#137)

* adding an implementation of a queue using 2 stacks

* Update QueueUsing2Stacks.js

Co-authored-by: vinayak <itssvinayak@gmail.com>

* updating DIRECTORY.md

* Create palindrome algorithm (TheAlgorithms#134)

* Create palindrome algorithm

* Update Palindrome.js

Co-authored-by: vinayak <itssvinayak@gmail.com>

* updating DIRECTORY.md

* Create pull_request_template.md (TheAlgorithms#153)

* Create pull_request_template.md

* Update pull_request_template.md

* Update pull_request_template.md

* Update pull_request_template.md

* Update pull_request_template.md

* Update README.md

* Update CONTRIBUTING.md

* added hcf finding algorithm (TheAlgorithms#104)

* added hcf finding algorith

* Update and rename find_hcf.js to FindHcf.js

Co-authored-by: vinayak <itssvinayak@gmail.com>

* updating DIRECTORY.md

* Create Fibonacci.js (TheAlgorithms#133)

* Create Fibonacci.js

* Update Fibonacci.js

Co-authored-by: vinayak <itssvinayak@gmail.com>

* updating DIRECTORY.md

* Javascript/Math: editing file name

* updating DIRECTORY.md

* Update nodejs.yml

* Update README.md

* editing file names

* updating DIRECTORY.md

* Quick Select Search (TheAlgorithms#131)

* HeapSort algorithm

* Create QuickSelect.js

* Algorithm to reverse a string.

* Update ReverseString.js

* Update Heapsort.js

* Update QuickSelect.js

Co-authored-by: vinayak <itssvinayak@gmail.com>

* updating DIRECTORY.md

* Update README.md

* Max heap implementation (TheAlgorithms#157)

* Added MaxHeap implementation

* Added MaxHeap implementation

* Added MaxHeap implementation

* Added MaxHeap implementation

* Delete package-lock.json

* Delete .gitignore

* updating DIRECTORY.md

* Renaming files according to naming convention (TheAlgorithms#158)

* updating DIRECTORY.md

* Fibonacci without recursion added (TheAlgorithms#159)

* changes made

* Update Fibonacci.js

* fib

Co-authored-by: vinayak <itssvinayak@gmail.com>

* updating DIRECTORY.md

* format files

* updating DIRECTORY.md

* Add good_filepaths function in workflow script

* updating DIRECTORY.md

* Add md_prefix and print_path functions

* Add reverse words (TheAlgorithms#162)

* add reverse words

* Update ReverseWords.js

* Update ReverseWords.js

Co-authored-by: vinayak <itssvinayak@gmail.com>

* updating DIRECTORY.md

* Add build_directory_md

* GitHub Action nodejs.yml upgrade to Node.js 14 (TheAlgorithms#165)

* JavaScript, not Javascript (TheAlgorithms#166)

* Rename script.js to UpdateDirectory.js

* updating DIRECTORY.md

* run: node UpdateDirectory.js

* run: node .github/workflows/UpdateDirectory.js

* updating DIRECTORY.md

* BogoSort.js: Simplify Array.isSorted() and add doctests

As discussed at TheAlgorithms#164 (comment)

Also related to add doctests as discussed in TheAlgorithms#142

* node -e "doctest('Sorts/BogoSort.js', {})"

* doctest --module Sorts Sorts/BogoSort.js

* Update nodejs.yml

* Update nodejs.yml

* npx doctest Sorts/BogoSort.js || true

* node_modules/doctest Sorts/BogoSort.js || true

* npx doctest Sorts/BogoSort.js

* updating DIRECTORY.md

* Ensure that build fail on bad test

* updating DIRECTORY.md

* Ready for review

* Add doctest to BucketSort.js

* updating DIRECTORY.md

* Update nodejs.yml

* updating DIRECTORY.md

* npx doctest Sorts/BogoSort.js Sorts/BucketSort.js

* updating DIRECTORY.md

* updating DIRECTORY.md

* Add Graph BFS algorithm (TheAlgorithms#169)

* Add Graph BFS algorithm

* updating DIRECTORY.md

* Fix failing tests

* updating DIRECTORY.md

* Fix further failing tests

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>

* updating DIRECTORY.md

* Re-orgainze files and folders in the repository (TheAlgorithms#172)

* Re-orgainze files and folders in the repository

* updating DIRECTORY.md

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>

Co-authored-by: Alex Brown <opti.jawsome@gmail.com>
Co-authored-by: Wan Cheuk Lun <winsonrich@gmail.com>
Co-authored-by: Mohit Sharma <msvbs98@gmail.com>
Co-authored-by: Akarsh <akarsh.satija@gmail.com>
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Co-authored-by: Anup Kumar Panwar <1anuppanwar@gmail.com>
Co-authored-by: Ravi Patel <ravi.patel1245@gmail.com>
Co-authored-by: mavroian <mavflorin@gmail.com>
Co-authored-by: Libin Yang <szuyanglb@outlook.com>
Co-authored-by: PatOnTheBack <51241310+PatOnTheBack@users.noreply.github.com>
Co-authored-by: lakshyabatman <lakshya.khera@gmail.com>
Co-authored-by: Christian Clauss <cclauss@me.com>
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: Nur69 <60115902+Nur69@users.noreply.github.com>
Co-authored-by: Stepfen Shawn <m18824909883@163.com>
Co-authored-by: hmizz <hamza.chabchoub@medtech.tn>
Co-authored-by: vinayak <itssvinayak@gmail.com>
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