To check if a string contains only numeric digits in Ruby, you can use regular expressions or methods like 'match' to check for numeric patterns in the string.
In this example,
def contains_only_numeric_digits(str)
!!str.match(/^\d+$/)
end
str = '12345'
all_digits = contains_only_numeric_digits(str)
puts 'String contains only numeric digits:', all_digits
String contains only numeric digits: true
In this tutorial, we learned How to Check if String contains only Numeric Digits in Ruby language with well detailed examples.