CODEWITHSUNDEEP
c#
silverstacker
silverstacker

Reputation: 17

I keep getting "Not all code paths return a value" error message

I am trying to create a string function, but when I start to implement code it's yelling at me at the first line of code.

I've tried to just implement public static string IsUniqueChar(string str), public string IsUniqueChar(string str), both of these throw an error. I know it's something small but I can't figure it out.

public static string IsUniqueChar(string str)
{
    for (int i = 0; i < str.Length; i++)
    {
        int val = str.ElementAt(i) - 'a';
    }
}

IsUniqueChar is underlined in red saying that "not all code paths return a value".

Upvotes: 0

Views: 61

Answers (1)

Corentin Pane
Corentin Pane

Reputation: 4943

You declare your method like a method returning a value of type string, but it doesn't return anything.. Try adding a return statement to it:

public static string IsUniqueChar(string str)
{
    for (int i = 0; i < str.Length; i++)
    {
        int val = str.ElementAt(i) - 'a';

    }
    return "hello";
}

Upvotes: 2

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