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Validating email addresses using regular expression with Razor syntax

I am using Razor syntax and trying to use a regular expression to validate email address; here is the validation function:

function validateEmail(txtEmail){
   var a = document.getElementById(txtEmail).value;
   var filter = /^[a-zA-Z0-9_.-]+@[a-zA-Z0-9]+[a-zA-Z0-9.-]+[a-zA-Z0-9]+.[a-z]{0,4}$/;
    if(filter.test(a)){
        return true;
    }
    else{
        return false;
    }
}​

but since the regular expression has an @ sign, Razor thinks it's part of it syntax and gives me an error.

Is there anyway to avoid to make sure razor disregards the @ sign in JavaScript ?

Solution

  • Unicode may work like this

    string filter = "/^[a-zA-Z0-9_.-]+\\u0440[a-zA-Z0-9]+[a-zA-Z0-9.-]+[a-zA-Z0-9]+.[a-z]{0,4}$/";

    Alternatively in razor @@ is a normal @ symbol, it should work in your javascript.

    string filter = "/^[a-zA-Z0-9_.-]+@@[a-zA-Z0-9]+[a-zA-Z0-9.-]+[a-zA-Z0-9]+.[a-z]{0,4}$/";