Question

I have an array lets say

array1 = ["abc", "a", "wxyz", "ab",......]

How do I make sure neither for example “a” (any 1 character), “ab” (any 2 characters), “abc” (any 3 characters), nor words like “that”, “this”, “what” etc nor any of the foul words are saved in array1?

Answer 1

This removes elements with less than 4 characters and words like this, that, what from array1 (if I got it right):

array1.reject! do |el|
    el.length < 4 || ['this', 'that', 'what'].include?(el)
end

This changes array1. If you use reject (without !), it’ll return the result and not change array1