Ruby is character

#Use a regular expression that matches letters & digits:
def letter?(lookAhead)
  lookAhead.match?(/[[:alpha:]]/)
end

def numeric?(lookAhead)
  lookAhead.match?(/[[:digit:]]/)
end

#These are called POSIX bracket expressions, and the advantage of them is
#that unicode characters under the given category will match. For example:

'ñ'.match?(/[A-Za-z]/)     #=> false
'ñ'.match?(/\w/)           #=> false
'ñ'.match?(/[[:alpha:]]/)  #=> true

#You can read more in Ruby’s docs for regular expressions.
#https://ruby-doc.org/core/Regexp.html

Source: stackoverflow.com

Similar codes

0 vote177 views1 answer
Bundle add cloudinary rails
Ruby
0 vote176 views1 answer
Ruby assign value to hash
Ruby
0 vote126 views1 answer
How to require all .rb files in rails
Ruby
0 vote125 views1 answer
Ruby test is number
Ruby
0 vote127 views0 answer
Ruby
2 votes177 views1 answer
Array ruby taking 3 last value
Ruby
0 vote193 views1 answer
Add key and value to first spot in hash ruby
Ruby
0 vote198 views1 answer
Why are getters and setters important ruby
Ruby
0 vote208 views1 answer
Ruby bundler load error
Ruby
1 vote188 views2 answers
Get input from user in ruby
Ruby