javascript - 在菜单外单击时隐藏的下拉菜单

Question

我有一个简单的下拉脚本，我希望它在菜单外单击时隐藏所有打开的下拉菜单。但这似乎不起作用，有人知道为什么吗？

您可以在这里找到它:http://codepen.io/dr-potato/pen/rLleC?editors=101

HTML

<ul>
  <li><a href="#">Home</a></li>
  <li class="Navigation-listItem is-dropdown">
    <a href="#">About</a>
    <ul class="Navigation-list is-dropdown is-hidden">
        <li>Johnny</li>
        <li>Julie</li>
        <li>Jamie</li>
    </ul>
  </li>
  <li class="Navigation-listItem is-dropdown">
    <a href="#">Contact</a>
    <ul class="Navigation-list is-dropdown is-hidden">
        <li>Johnny</li>
        <li>Julie</li>
        <li>Jamie</li>
    </ul>
  </li>
</ul>

CSS

.Navigation-list {
    display: block;
}

.Navigation-list.is-hidden {
    display: none;
}

JS

$(document).ready(function() {
    $('.Navigation-listItem').click(function() {
      $(this).children('.Navigation-list.is-dropdown').toggleClass('is-hidden');
    });
});

/* Anything that gets to the document
   will hide the dropdown */
$(document).click(function(){
  $(".Navigation-listItem.is-dropdown").addClass('is-hidden');
});

/* Clicks within the dropdown won't make
   it past the dropdown itself */
$(".Navigation-listItem.is-dropdown").click(function(e){
  e.stopPropagation();
});

Answer 1

Working Fiddle

jQuery 代码

$(document).ready(function () {
    $('.Navigation-listItem').click(function () {
        $(this).children('.Navigation-list.is-dropdown').toggleClass('is-hidden');
    });


    /* Anything that gets to the document
   will hide the dropdown */
    $(document).on('click', function (event) {
        if ($(event.target).closest('#menu').length == false) {
            $(".Navigation-list.is-dropdown").addClass('is-hidden');
        }
    });

    /* Clicks within the dropdown won't make
   it past the dropdown itself */
    $(".Navigation-listItem.is-dropdown ").click(function (e) {
        e.stopPropagation();
    });
});

在 this answer 的帮助下