JavaScript Algorithms

The JavaScript algorithms collection includes implementations and examples of popular algorithms in ES6. Algorithmic snippets are primarily a learning resource, as they might already be implemented natively or require optimizations to run in production.

RecommendedAlphabeticalExpertise

  • kMeans

    JavaScript, Algorithm

    Groups the given data into k clusters, using the k-means clustering algorithm.

  • kNearestNeighbors

    JavaScript, Algorithm

    Classifies a data point relative to a labelled data set, using the k-nearest neighbors algorithm.

  • quickSort

    JavaScript, Algorithm

    Sorts an array of numbers, using the quicksort algorithm.

  • indexOfSubstrings

    JavaScript, String

    Finds all the indexes of a substring in a given string.

  • luhnCheck

    JavaScript, Math

    Implementation of the Luhn Algorithm used to validate a variety of identification numbers, such as credit card numbers, IMEI numbers, National Provider Identifier numbers etc.

  • bucketSort

    JavaScript, Algorithm

    Sorts an array of numbers, using the bucket sort algorithm.

  • heapsort

    JavaScript, Algorithm

    Sorts an array of numbers, using the heapsort algorithm.

  • selectionSort

    JavaScript, Algorithm

    Sorts an array of numbers, using the selection sort algorithm.

  • permutations

    JavaScript, Array

    Generates all permutations of an array's elements (contains duplicates).

  • caesarCipher

    JavaScript, Algorithm

    Encrypts or decrypts a given string using the Caesar cipher.

  • primes

    JavaScript, Math

    Generates primes up to a given number, using the Sieve of Eratosthenes.

  • countSubstrings

    JavaScript, String

    Counts the occurrences of a substring in a given string.

  • euclideanDistance

    JavaScript, Math

    Calculates the distance between two points in any number of dimensions.

  • insertionSort

    JavaScript, Algorithm

    Sorts an array of numbers, using the insertion sort algorithm.

  • mergeSort

    JavaScript, Algorithm

    Sorts an array of numbers, using the merge sort algorithm.

23