String in alphabetical order Ruby

I am new to Ruby. I have written a solution in Java

public boolean checkOrder(String input) {
        boolean x = false;
        for (int i = 0; i < input.length() - 1; i++) {
            if (input.charAt(i) < input.charAt(i + 1) || input.charAt(i) == input.charAt(i + 1)) {
                x = true;
            } else {
                return false;
        return x;


I want to do the same in ruby how can I convert the same into ruby. Thanks.


def checkOrder(input)
  input.chars.sort == input.chars.to_a

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