JavaScript Events - markhowellsmead/helpers GitHub Wiki
Block form submission on enter key
Stops the default form submission when pressing the enter key whilst in a form field. In this example, the rule applies to search fields. This can be useful if the search happens amongst page elements, or via an AJAX autocomplete function.
$('input[type="search"]').on('keydown', function(event){
if (event.keyCode == 13) {
event.preventDefault();
return false;
}
});