Check if string starts with X letter in Ruby

Question

How can I check that string starts with a given letter in Ruby?

Answer 1

You can use String#start_with? method

'String'.start_with? 'S'
 => true

Also you can list possible variants of beginning

'String'.start_with? 'E', 'S'
 => true

Answer 2

you can use regex

str.match /^X/