这将禁用页面上所有表单的输入键，并且不阻止在文本区域输入。

    // disable form submit with enter

    $('form input:not([type="submit"])').keydown((e) => {
        if (e.keyCode === 13) {
            e.preventDefault();
            return false;
        }
        return true;
    });

您可以创建一个JavaScript方法来检查是否按下了Enter键，如果按下了，就停止提交。

<script type="text/javascript">
  function noenter() {
  return !(window.event && window.event.keyCode == 13); }
</script>

只需在submit方法上调用它。

为了阻止表单被提交，我必须捕获所有与按下键相关的三个事件:

    var preventSubmit = function(event) {
        if(event.keyCode == 13) {
            console.log("caught ya!");
            event.preventDefault();
            //event.stopPropagation();
            return false;
        }
    }
    $("#search").keypress(preventSubmit);
    $("#search").keydown(preventSubmit);
    $("#search").keyup(preventSubmit);

你可以把上面所有的组合成一个漂亮的紧凑版本:

    $('#search').bind('keypress keydown keyup', function(e){
       if(e.keyCode == 13) { e.preventDefault(); }
    });

第4.10.22.2节隐式提交的W3C HTML5规范说:

A form element's default button is the first submit button in tree order whose form owner is that form element. If the user agent supports letting the user submit a form implicitly (for example, on some platforms hitting the "enter" key while a text field is focused implicitly submits the form), then doing so for a form whose default button has a defined activation behavior must cause the user agent to run synthetic click activation steps on that default button. Note: Consequently, if the default button is disabled, the form is not submitted when such an implicit submission mechanism is used. (A button has no activation behavior when disabled.)

因此，一种符合标准的禁用表单隐式提交的方法是将禁用的提交按钮作为表单中的第一个提交按钮:

<form action="...">
  <!-- Prevent implicit submission of the form -->
  <button type="submit" disabled style="display: none" aria-hidden="true"></button>

  <!-- ... -->

  <button type="submit">Submit</button>
</form>

这种方法的一个很好的特性是它不需要JavaScript;无论是否启用JavaScript，都需要一个符合标准的web浏览器来防止隐式表单提交。

在我的特定情况下，我必须停止ENTER提交表单，并模拟单击提交按钮。这是因为提交按钮上有一个点击处理程序，因为我们在一个模态窗口中(继承了旧代码)。在任何情况下，这是我的组合解。

    $('input,select').keypress(function(event) {
        // detect ENTER key
        if (event.keyCode == 13) {
            // simulate submit button click
            $("#btn-submit").click();
            // stop form from submitting via ENTER key press
            event.preventDefault ? event.preventDefault() : event.returnValue = false;
        }
    });

这个用例对于使用IE8的人特别有用。

Use:

// Validate your form using the jQuery onsubmit function... It'll really work...

$(document).ready(function(){
   $(#form).submit(e){
       e.preventDefault();
       if(validation())
          document.form1.submit();
   });
});

function validation()
{
   // Your form checking goes here.
}

<form id='form1' method='POST' action=''>
    // Your form data
</form>