Question

I am in a situation where I cant use the validate plugin of Jquery.
So I have written a custom validator. But the test function is not working for some reason.

Code is running fine till the line if (format.test(email)) { . Please share your knowledge. Thanks in advance

$(document).ready(function () {
    $("#MainContent_btnSubmit").click(function () {
        validateEmail();

    });
});






function validateEmail() {

    var format = "[a-zA-Z._0-9]@[a-zA-Z.0-9].[a-zA-Z]";
    var email = $("#MainContent_txtEmail").val();


    if (format.test(email)) {
        alert("Correct Email");
    }
    else {
        alert("Wrong Email");
    }

Answer 1

format needs to be a RegExp object:

var format = new RegExp("[a-zA-Z._0-9]@[a-zA-Z.0-9].[a-zA-Z]");

Additionally, I suspect you want the value to contain nothing but an email, so use anchors:

var format = new RegExp("^[a-zA-Z._0-9]+@[a-zA-Z0-9]+\\.[a-zA-Z]+$");