form 表单提交的问题

<div class="" id="">
    <form class="" enctype="multipart/form-data" method="post" action={{actionUrl}} name="viewForm">
        <div class="">
            <label class="">View Name:</label>
            <div class="">
                <input type="text" class="" ng-model="viewName" required name="viewName" ng-keyup="onKeyPress($event)" autofocus="autofocus">
            </div>
        </div>
    </form>
</div>

今天帮同事看个问题，大致就是一个简单的监听enter键按下之后，发个post请求回调里刷新一下数据，但是貌似每次都是整个页面刷新。原因是因为她copy的代码里多了这个form标签。

https://api.jquery.com/submit/

参考Jquery文档中的一段说明（黄色背景色）

Depending on the browser, the Enter key may only cause a form submission if the form has exactly one text field, or only when there is a submit button present. The interface should not rely on a particular behavior for this key unless the issue is forced by observing the keypress event for presses of the Enter key.

所以很多时候不要copy paste代码。就算硬要这么搞也要保证自己看懂这些code。