javascript-algorithms | 💻 JavaScript implementations of computer science algorithms | Learning library

by mgechev JavaScript Version: Current License: MIT

X-Ray Key Features Code Snippets(3)Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | javascript-algorithms Summary

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

This repository contains JavaScript implementations of famous computer science algorithms.

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javascript-algorithms has a medium active ecosystem.

It has 7680 star(s) with 1303 fork(s). There are 263 watchers for this library.

It had no major release in the last 6 months.

There are 5 open issues and 60 have been closed. On average issues are closed in 148 days. There are 8 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of javascript-algorithms is current.

Quality

javascript-algorithms has 0 bugs and 0 code smells.

Security

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

javascript-algorithms code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

javascript-algorithms is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

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

Installation instructions are not available. Examples and code snippets are available.

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javascript-algorithms Key Features

No Key Features are available at this moment for javascript-algorithms.

javascript-algorithms Examples and Code Snippets

Calculates the inverse of a matrix to solve with linearization .

javascript

Lines of Code : 34

License : No License

Copy

function matrixChainOrder(p) {
  const n = p.length;
  const m = [];
  const s = [];
  for (let i = 1; i <= n; i++) {
    m[i] = [];
    m[i][i] = 0;
  }
  for (let i = 0; i <= n; i++) {
    // to help printing the optimal solution
    s[i] = [

Sorts an array .

javascript

Lines of Code : 22

License : No License

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function countingSort(array) {
  if (array.length < 2) {
    return array;
  }
  const maxValue = findMaxValue(array);
  let sortedIndex = 0;
  const counts = new Array(maxValue + 1);
  array.forEach(element => {
    if (!counts[element]) {

binary search helper

javascript

Lines of Code : 21

License : No License

Copy

function binarySearch(array, value, compareFn = defaultCompare) {
  const sortedArray = quickSort(array);
  let low = 0;
  let high = sortedArray.length - 1;
  while (low <= high) {
    const mid = Math.floor((low + high) / 2);
    const element =

Community Discussions

Trending Discussions on javascript-algorithms

How does recursion work in a Countdown function

Please suggest how to debug

Arguments Optional - why do I get a string for arguments (2)([3])?

trying to understand this profile lookup in JavaScript

What is wrong in my regex /(?=^[a-z]+\d{2,})(?=\w{5,})/ pattern?

JavaScript objects update function not working

Javascript regex - reusing patterns to capture groups

Why does it automatically loop?

ES6: Create Strings using Template LiteralsPassed Freecodecamp

for-loop without stop condition?

QUESTION

How does recursion work in a Countdown function

Asked 2021-Jun-01 at 18:00

I'm learning a bit of JavaScript, but I'm having hard time understanding the lesson on FreeCodeCamp about the recursion countdown (link).

In the lesson, there this initial example. But I'm confused on how it operates:

...

ANSWER

Answered 2021-Jun-01 at 17:26

Here what the array looks like inside of each function call if this helps:

Source https://stackoverflow.com/questions/67793271

QUESTION

Please suggest how to debug

Asked 2021-Feb-05 at 02:40

I am trying to complete the "Map the Debris" freecodecamp challenge https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/intermediate-algorithm-scripting/map-the-debris, and I think I've gotten it. It works from my PC's code editor, but when I copy/paste into the website area the conditions don't satisfy.

How do I best debug this?

My code is

...

ANSWER

Answered 2021-Feb-05 at 02:40

You have to parse to int the orbSec variable

Just replace this line:

Source https://stackoverflow.com/questions/66056782

QUESTION

Arguments Optional - why do I get a string for arguments (2)([3])?

Asked 2021-Feb-04 at 08:54

This is a follow up to my questions on the Arguments Optional Challenge in Freecodecamp (see below0:

I have now satisfied 5/6 conditions of the challenge, except for when the input is addTogether(2,([3])), which returns '23' as a string instead of the correct 'undefined'.

If the [3] is an array, and an array is an object, shouldn't my checkNum function work to label that as undefined? Where was the string generated?

my code now:

...

ANSWER

Answered 2021-Feb-04 at 05:28

We can declare functions in 2 ways, the regular way:

Source https://stackoverflow.com/questions/66039609

QUESTION

trying to understand this profile lookup in JavaScript

Asked 2020-Dec-15 at 19:28

Hello guys I am having some issues understanding this challenge from FreeCodeCamp< i just did all the steps that I was told to do on the challange but I can just get it to work, here is the link

https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/basic-javascript/profile-lookup

And here is my solution

...

ANSWER

Answered 2020-Dec-15 at 19:13

I am sharing my solution which is slightly different from yours. Compare it to your own. You will see that I only return inside my for loop when I get a positive match , otherwise I let the loop run. This is the biggest difference. You need to let the loop run fully and then through some mechanism keep track of the missing conditions . I have used two different variables to track the missing conditions here.

Source https://stackoverflow.com/questions/65312020

QUESTION

What is wrong in my regex /(?=^[a-z]+\d{2,})(?=\w{5,})/ pattern?

Asked 2020-Nov-10 at 08:06

This regex has to match passwords that are greater than 5 characters long, do not begin with numbers, and have two consecutive digits.

All the test cases are passing the regex test.

My regex is /(?=^[a-z]+\d{2,})(?=\w{5,})/

I have to use two positive lookaheads to solve this problem to pass the tests.

But astr1on11aut is not passing the test. Why?

Link to problem- https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/regular-expressions/positive-and-negative-lookahead

...

ANSWER

Answered 2020-Nov-10 at 07:25

If you are not limited to using a single regex, I suggest splitting this into multiple tests in your host language (e.g. JavaScript):

Source https://stackoverflow.com/questions/64764350

QUESTION

JavaScript objects update function not working

Asked 2020-Oct-23 at 16:07

im studying JavaScript and im trying to solve the problem in this test exercise: FreeCodeCamp Record Collection

I can't understand why it doesnt work. The object details and the problem description are in the link above.

...

ANSWER

Answered 2020-Oct-23 at 16:07

Let's take a look at this line:

Source https://stackoverflow.com/questions/64503400

QUESTION

Javascript regex - reusing patterns to capture groups

Asked 2020-Sep-02 at 08:20

I'm just trying to learn javascript regex and have been stuck on this problem for a while.

I need to match patterns, some examples below:

...

ANSWER

Answered 2020-Jul-30 at 07:34

Have alook at anchors

Add a $ if it is per line: /^(\d+)(\s)\1\2\1$/

https://regex101.com/r/FFwPWF/1

Source https://stackoverflow.com/questions/63167896

QUESTION

Why does it automatically loop?

Asked 2020-Jul-01 at 15:51

I have a question about javascript.

At first, the result of the code below is "-1 Hold", but I'm wondering why does the part where I put mark ① automatically loops with the next arguments?

I was expecting that the function processes through of it and put the result with only one argument, then goes to the next arguments. So I expected "1 Bet", "1 Bet", "-1 Hold", "0 Hold", "-1 Hold" would be output as a result.

I couldn't find explanation about this since yesterday to now.. I'd be happy if somebody helps me.

*This is the URL of the task I'm talking about.

Here is the code.

...

ANSWER

Answered 2020-Jul-01 at 14:03

If you are using dev console to test it, it is simple. Only last command return value is shown (Not last line).

You should do something like

Source https://stackoverflow.com/questions/62678529

QUESTION

ES6: Create Strings using Template LiteralsPassed Freecodecamp

Asked 2020-Jun-27 at 23:05

Create Strings using Template LiteralsPassed

...

ANSWER

Answered 2020-Jun-27 at 23:05

you needed to return "resultDisplayArray(arr)" instead of "resultDisplayArray", and place a "let" in front of "element"

Source https://stackoverflow.com/questions/62616382

QUESTION

for-loop without stop condition?

Asked 2020-Jun-26 at 23:57

I just finished the FreecodeCamp.com quiz Intermediate Algorithm Scripting: Smallest Common Multiple.

The code is working fine for the test cases they give ([1, 5], [5, 1] [23, 18] and [1, 13]) but if I use a bigger range I also have to edit the code and increase the stop condition for the for-loop, and when I remove the stop condition from the loop, it gives an error.

...

ANSWER

Answered 2020-Jun-26 at 23:57

Going to explain a little of the code; what we do first is to sort the array since it is an array of two numbers, after we sort it, we need to create a new array to store the path from the first element to the second one; we define the diference between the greatest and the smallest number in order to create a for to store the path, after we store the path; we define two functions for finding the grand common divisor and the Least Common Multiple; after that we use a reduce to get the Value of the LCM. Hope this helps you, the algorithm of the gcd is based on Euclidean Division

Source https://stackoverflow.com/questions/62603615

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

Vulnerabilities

No vulnerabilities reported

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