Say that I have three arrays arr1, arr1 and arr3.
arr1 = ["apple", "book", "car", "dog"]
arr2 = ["apple", "book"]
arr3 = ["app", "boo"]
How can I check if arr1 includes: arr2, and arr3 with like wildcards.
You could use Enumerable#grep:
arr3.all? { |item| arr2.grep(/#{item}/)[0] }
#=> true
This matches substrings (e.g. ook), to match only prefixes use /^#{item}/.
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