Stop automatic form submissions from the enter key

Question

Stop automatic form submissions from the enter key

My live chat messaging system is experiencing an issue where the page refreshes every time a user presses the enter button. I attempted to use prevent default code, but it did not work for me. I'm new to website programming, so if there are any problems in the code below, please let me know.

jQuery(document).ready(function() {
    jQuery('.btn-success').click(function() {
        var form_name  = jQuery(this).attr('title');
        var obj = jQuery(this);
        jQuery(".ajax_indi").show();
        switch (form_name) {
            case "npost":
            var message = jQuery("#message").val();
            break;
            default:
            alert("something went wrong!");
        }
        if((jQuery(message) == ''))
        {
           alert("Message Cannot be Empty");
           jQuery(".ajax_indi").hide();
           return false;
        } else {
        jQuery(this).attr("disabled", "disabled");
        jQuery(this).prop('value', 'Loading...');
        jQuery(this).css('cursor', 'default');
        }
        var str = jQuery("#"+form_name).serialize();
        jQuery.ajax({
            type: "POST",
            url: "chat.php",
            data: str,
            cache: false,
            success: function(html){
                jQuery('#chat1').append(html);
                obj.attr("disabled", false);
                obj.prop('value', 'Post');
                obj.css('cursor', 'pointer');
                jQuery(".ajax_indi").hide();
                document.getElementById(form_name).reset();
            }
        });
    }); 
});

Edited part

<form id="npost"  name="npost">
    <input class="form-control" placeholder="Type your message here..." 
    type="text" name="message">
    <input type="hidden" name="id" value="1">
    <span class="input-group-btn">
        <button type="button" class="btn btn-success" title="npost" >Send</button>

javascript ajax chat

Answer 1

Answer №1

To avoid submitting the form, you can simply include return false in your code to halt the execution of the function.

Answer 2

To avoid submitting the form, you can simply include return false in your code to halt the execution of the function.

Answer 3

Answer №2

To prevent form submission when hitting the enter key, you can use the preventDefault function. By default, pressing enter will submit the form. To avoid this behavior, add preventDefault to your code like so:

<script type="text/javascript" >
jQuery(document).ready(function(){

jQuery('.btn-success').click(function(e){         // make sure to include e parameter
 e.preventDefault();                              // add this line to prevent default action
var form_name  = jQuery(this).attr('title');
var obj = jQuery(this);
jQuery(".ajax_indi").show();
var message = '';
        switch (form_name)
        {

        case "npost":
                var message = jQuery("#message").val();
        break;
        default:
        alert("something went wrong!");
        }

        if((jQuery(message) == ''))
        {
             alert("Message Cannot be Empty");
             jQuery(".ajax_indi").hide();
             return false;
        } else {
            jQuery(this).attr("disabled", "disabled");
            jQuery(this).prop('value', 'Loading...');
            jQuery(this).css('cursor', 'default');
        }

        var str = jQuery("#"+form_name).serialize();

        jQuery.ajax({
            type: "POST",
            url: "chat.php",
            data: str,
            cache: false,
            success: function(html){
                jQuery('#chat1').append(html);
                obj.attr("disabled", false);
                obj.prop('value', 'Post');
                obj.css('cursor', 'pointer');
                jQuery(".ajax_indi").hide();
                document.getElementById(form_name).reset();
            }
        });
           });

       });
   </script>

Answer 4

To prevent form submission when hitting the enter key, you can use the preventDefault function. By default, pressing enter will submit the form. To avoid this behavior, add preventDefault to your code like so:

<script type="text/javascript" >
jQuery(document).ready(function(){

jQuery('.btn-success').click(function(e){         // make sure to include e parameter
 e.preventDefault();                              // add this line to prevent default action
var form_name  = jQuery(this).attr('title');
var obj = jQuery(this);
jQuery(".ajax_indi").show();
var message = '';
        switch (form_name)
        {

        case "npost":
                var message = jQuery("#message").val();
        break;
        default:
        alert("something went wrong!");
        }

        if((jQuery(message) == ''))
        {
             alert("Message Cannot be Empty");
             jQuery(".ajax_indi").hide();
             return false;
        } else {
            jQuery(this).attr("disabled", "disabled");
            jQuery(this).prop('value', 'Loading...');
            jQuery(this).css('cursor', 'default');
        }

        var str = jQuery("#"+form_name).serialize();

        jQuery.ajax({
            type: "POST",
            url: "chat.php",
            data: str,
            cache: false,
            success: function(html){
                jQuery('#chat1').append(html);
                obj.attr("disabled", false);
                obj.prop('value', 'Post');
                obj.css('cursor', 'pointer');
                jQuery(".ajax_indi").hide();
                document.getElementById(form_name).reset();
            }
        });
           });

       });
   </script>

Answer 5

Answer №3

When dealing with the default action of the Enter key, it's important to take preventative measures. The following code demonstrates how to prevent the default action of the Enter key:

$('#npost').on('keyup keypress', function(e) {
   if (e.which == 13) { 
       e.preventDefault();
       return false;
   }
});

Answer 6

When dealing with the default action of the Enter key, it's important to take preventative measures. The following code demonstrates how to prevent the default action of the Enter key:

$('#npost').on('keyup keypress', function(e) {
   if (e.which == 13) { 
       e.preventDefault();
       return false;
   }
});

Stop automatic form submissions from the enter key

Answer №1

Answer №2

Answer №3

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