c# how to check string is number
string s1 = "123";
string s2 = "abc";
bool isNumber = int.TryParse(s1, out int n); // returns true
isNumber = int.TryParse(s2, out int n); // returns falsec# how to check string is number
string s1 = "123";
string s2 = "abc";
bool isNumber = int.TryParse(s1, out int n); // returns true
isNumber = int.TryParse(s2, out int n); // returns falsestring is int f#
let str = Console.ReadLine()
match int.TryParse str with
| true, num -> printfn "%i" num
| _ -> failwithf "'%s' is not an integer" strCopyright © 2021 Codeinu
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