[Solved] C# – How do I put the Function Regex working? [closed]
this is not an issue with the bit of code you showed. This is a namespace issue at the very top of your file. The solution should be https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/namespaces/ using System; using System.Text.RegularExpressions; public class Test { public static void Main () { var isNumeric1 = IsNumeric(“1”); Console.WriteLine(isNumeric1); var isNumeric2 = IsNumeric(“HelloWorld”); Console.WriteLine(isNumeric2); //call IsNumeric … Read more