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 [ ]
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
You could also skip regular expressions altogether:
['apple', 'pear', 'orange'].any?{|s| product.name.downcase.match(s)}
or
['apple', 'pear', 'orange'].any?{|s| product.name.downcase[s]}
