// C# Eval Expression

// Doc: https://eval-expression.net/eval-execute

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// @nuget: Z.Expressions.Eval

​

/*

# How to use the Execute Method?

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The `Execute` method allows you to execute any C# code or expression at runtime.

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It could be from a very simple math expression from an user input: https://dotnetfiddle.net/Jf9LMp

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To a more complex C# code, such as solving the famous [FizzBuzz](https://en.wikipedia.org/wiki/Fizz_buzz) interview question:  https://dotnetfiddle.net/BBJ4Ut

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In short, the `Execute` method from the C# Eval Expression library let you execute any C# code at runtime that you usually write in Visual Studio.

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See more: https://eval-expression.net/eval-execute

*/

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using System;

using Z.Expressions;

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public class Program

{

    public static void Main()

    {

        // Let's assume the user input is from someone that wants to solve a Facebook math problem

        var userInput = "6-1*0";

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        // Execute the user input to solve the math expression

        var r = Eval.Execute<int>(userInput); // return 6

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        // The answer is 6 due to multiply operator priority "6-1*0" => "6-(1*0)" => "6-0" => "6"

        Console.WriteLine("The result is: " + r);

    }

}

​

​