Javascript algorithm to find elements in array that are not in another array

by

in ES6 simply

const a1 = ["a", "b", "c", "t"];
const a2 = ["d", "a", "t", "e", "g"];

console.log( a2.filter(x => !a1.includes(x)) );

(another option is a2.filter(x => a1.indexOf(x)===-1) )

More Related Contents:

  1. Sorting array of object based on range of Numbers of String [closed]
  2. How do I check if an array includes a value in JavaScript?
  3. How to find the sum of an array of numbers
  4. JQuery .each() backwards
  5. Why does typeof array with objects return “object” and not “array”? [duplicate]
  6. How might I find the largest number contained in a JavaScript array?
  7. How to add an object to an array
  8. Check if an array is empty or exists
  9. Find and remove objects in an array based on a key value in JavaScript
  10. How to count the number of occurrences of each item in an array? [duplicate]
  11. Using jQuery to compare two arrays of Javascript objects
  12. Javascript – Generating all combinations of elements in a single array (in pairs)
  13. Get unique results from JSON array using jQuery
  14. Compare 2 arrays which returns difference
  15. What is the most efficient way to sort an Html Select’s Options by value, while preserving the currently selected item?
  16. Filter strings in Array based on content (filter search value)
  17. What does $(selector)[0] mean in jQuery?
  18. Sieve of Eratosthenes algorithm in JavaScript running endless for large number
  19. Remove occurrences of duplicate words in a string
  20. Can I append an array to ‘formdata’ in javascript?
  21. Create array of all integers between two numbers, inclusive, in Javascript/jQuery
  22. Convert js Array() to JSon object for use with JQuery .ajax
  23. Paint algorithm leaving white pixels at the edges when I color [duplicate]
  24. Finding all permutations of array elements as concatenated strings
  25. Sorting an Array of JavaScript Objects a Specific Order (using existing function)
  26. Creating an array consisting of the largest values of each sub-array does not work as expected
  27. Randomizing elements in an array?
  28. How to flatten array in jQuery?
  29. javaScript: Can a comma occur after the last set of values in an array?
  30. How to put all elements’ content in array using jQuery ?

Leave a Comment