使用jQuery进行电子邮件检查不起作用

Question

I tried to make Ajax form and tried to make email verification there. I found this solution http://jsfiddle.net/EFfCa/

but can't turn it on in my script:

<script> 
    $('#joinForm').ajaxForm(function() {
        var testEmail = /^[A-Z0-9._%+-]+@([A-Z0-9-]+\.)+[A-Z]{2,4}$/i;
        var name = $("input[name=name]")
        var email = $("input[name=email]")
        if(name.val()==''||email.val()=='') {
            $(".notify").show();
            $(".notify p").text('empty');
        } else if(testEmail.test(email.value)) {
            $(".notify").show();
            $(".notify p").text('email is wrong');      
        } else {
            $(".notify").show();
            $(".notify p").text('good');    
        }
    }); 
</script>

The form always passed verification even email is wrong. Verification for empty fields works good...

Answer 1

The following line else if(testEmail.test(email.value)) will return true if the email is correct.

In your logic that's where the email is wrong could that be the problem?

Answer 2

This is because your passing email.value . jquery objects don't have a parameter called value , so this will resolve as undefined .

.test() returns true if it is passed undefined, so your test will always pass.

use .val() instead.

Answer 3

  $('input').blur(function() {
        var testEmail =/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
        if (testEmail.test(this.value)) alert('passed');
        else alert('failed');
    });