Question

I’m scanning through a product name to check if a specific string exists in it. Right now it works for a single string, but how can I can scan for multiple strings? e.g. i’d like to scan for both apple and microsoft

product.name.downcase.scan(/apple/)

If the string is detected i get [“apple”]
if not then it returns nil [ ]

Answer 1

You can use regex alternation:

product.name.downcase.scan(/apple|microsoft/)

If all you need to know is whether the string contains any of the specified strings, you should better use single match =~ instead of scan.

str = 'microsoft, apple and microsoft once again'

res = str.scan /apple|microsoft/ # => res = ["microsoft", "apple", "microsoft"]
# do smth with res

# or
if str =~ /apple|microsoft/
  # do smth
end