Using .filter to compare two arrays and return values that aren't matched

Question

I\'m having some issues comparing the elements of two arrays and filtering out matching values. I only want to return array elements that are NOT included within wordsToRe

Answer 1

That is pretty easy to do using Array.prototype.filter:

var fullWordList = ['1','2','3','4','5'];
var wordsToRemove = ['1','2','3'];

var filteredKeywords = fullWordList.filter(
  word=>!wordsToRemove.includes(word)
//or
//word=>wordsToRemove.indexOf(word)<0
);