[Solved] Check if the string contains all the characters from a to z [closed]

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You can use an extension method like this

public static class StringExtensions
{
    private static char[] _alphabet;

    static StringExtensions()
    {
        _alphabet = "abcdefghijklmnopqrstuvwxyz".ToCharArray();
    }

    public static bool ContainsAlphabet(this string input)
    {
        return !_alphabet
            .Except(new HashSet<char>(input))
            .Any();
    }
}

"asdasd".ContainsAlphabet(); //false
"abcdeffffghijklmnopqrstuvwxyzzz".ContainsAlphabet(); //true

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solved Check if the string contains all the characters from a to z [closed]