Question on the built-in email validator: client-side?

[Dongmei Cao]

Hi,

Does the built-in email validator do client-side validation? I’m wondering if I 
did something wrong here.

When I use the following, I do not get client-side validation:
<input type="text" t:type="TextField" t:id="email" t:value="email" 
validate="email”/>

But this one gives me client-side validation just fine.
<input type="text" t:type="TextField" t:id="email" t:value="email" 
validate="regexp=^([a-zA-Z0-9_.-])+@(([a-zA-Z0-9-])+.)+([a-zA-Z0-9]{2,4})+$"/>

Thanks in advance!
D