jQuery-contextMenu - $ .contextMenu不是一个函数

Question

我尝试使用contextMenu Plugin，但我得$.contextMenu is not a function。

我在demo中尝试过它。

我无法弄清楚我做错了什么。

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$(function() {
        $.contextMenu({
            selector: '.context-menu-one', 
            callback: function(key, options) {
                var m = "clicked: " + key;
                alert(m); 
            },
            items: {
                "edit": {name: "Edit", icon: "edit"},
                "cut": {name: "Cut", icon: "cut"},
               copy: {name: "Copy", icon: "copy"},
                "paste": {name: "Paste", icon: "paste"},
                "delete": {name: "Delete", icon: "delete"},
                "sep1": "---------",
                "quit": {name: "Quit", icon: function(){
                    return 'context-menu-icon context-menu-icon-quit';
                }}
            }
        });

        $('.context-menu-one').on('click', function(e){
            console.log('clicked', this);
        }); 
});

＆＃13;

<script
  src="https://code.jquery.com/jquery-3.3.1.min.js"
  integrity="sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8="
  crossorigin="anonymous"></script>
<script type="text/javascript" src="https://raw.githubusercontent.com/swisnl/jQuery-contextMenu/master/src/jquery.contextMenu.js"></script>




<span class="context-menu-one btn btn-neutral">right click me</span>

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