Question

I have an input field that is validated against a database through AJAX on keyUp().

If the entered text is satisfactory a is enabled.

I want to also toggle the enter on submit for the text input field.

<div id="faq_dupe" class="center-modal">
    <form id="faq_form" onsubmit="AJAXsendData(); hideModal('faq_dupe'); return false;">
        <input id="faq_dupe_search" type="text" placeholder="e.g. 00AA1" class="noEnterSubmit"/>
        <button id="faq_dupe_img" type="submit" disabled>
            <img src="/img/val-no.png"/>
            <div>Submit</div>
        </button>
    </form>
    <script type="text/javascript">
        $('.noEnterSubmit').keypress(function(e){
            if ( e.which == 13 ) return false;
        });
    </script>
    <script type="text/javascript">
        $('#faq_dupe_search').keydown(function() {
            var faqimg = '<img src="/img/load-a-40px.gif"/><div>Submit</div>';
            document.getElementById('faq_dupe_img').innerHTML = faqimg;
        });
    </script>
    <script type="text/javascript">
        $('#faq_dupe_search').keyup(function() {
            AJAXvalFAQid($('#faq_dupe_search').val());
        });
    </script>
</div>

I have AJAXvalFAQid() adding and removing the .noEnterSubmit class.

As of right now hitting enter will not execute the scripts in onsubmit=”” whether the .noEnterSubmit class is applied or not.

Here is what I ened up using:

<script type="text/javascript">
    function onsubmit(event) {
        if(noEnterSubmit === true){
            event.preventDefault();
        }else{
            sendData();
            hideModal('faq_dupe');
            return false;
        }
    }
</script>

Answer 1

It’s easier to just have one submit function. It could look like this:

function onsubmit(event) {
    if (input_is_valid()) {
        // all is well, let the event continue
    } else {
        event.preventDefault(); // block the submit
        show_errors();
    }
}

with

<form id="faq_form">..</form>
<script type="text/javascript">
    $("#faq_form").submit(onsubmit);
</script>