Question

For a text input defined as:

<input type="text" name="Email0" id="Email0" value="1st Email" /><br />

If the user changes the value of that text box I simply pass it along with the form submit…if they _haven’t changed it – i need to pass a value of ‘null’.

$('#frmSignup').submit(function () {
    if (Email0.value != Email0.defaultValue) {
        alert("hit here"); //not hitting here
    }
});

You’ll note that jQuery exists but i’m unclear as to exactly how to retrieve a input’s defaultValue to jQuery.

thx

Answer 1

You can reference the underlying DOM element from a jQuery object using array syntax…

$("#frmSignup").submit(function () { 
    var email = $("#Email0")[0]; // gets DOM element

    if(email.value != email.defaultValue) { 
      alert("hit here");
    } 
});