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社区首页 >问答首页 >.addEventListener不是一个函数吗?

.addEventListener不是一个函数吗?
EN

Stack Overflow用户
提问于 2015-08-17 23:52:24
回答 2查看 9.1K关注 0票数 0

有人在科德芬上帮助我编写了这个脚本,在我尝试将它应用到Wordpress网站之前,它运行得很好。

这两套灰点是纽扣。每个按钮都会打开自己的幻灯片菜单。

在控制台上,我收到这个特定的错误。"openbtn.addEventListener不是函数

与本守则有关:

在代码中,错误位于第104行。

代码语言:javascript
复制
<script>
 /*!
  * classie - class helper functions
  * classie.has( elem, 'my-class' ) -> true/false
  * classie.add( elem, 'my-new-class' )
  * classie.remove( elem, 'my-unwanted-class' )
  * classie.toggle( elem, 'my-class' )
  */

 /*jshint browser: true, strict: true, undef: true */
 /*global define: false */

 (function (window) {

     'use strict';

     // class helper functions from bonzo https://github.com/ded/bonzo

     function classReg(className) {
         return new RegExp("(^|s+)" + className + "(s+|$)");
     }

     // classList support for class management
     // altho to be fair, the api sucks because it won't accept multiple classes at once
     var hasClass, addClass, removeClass;

     if ('classList' in document.documentElement) {
         hasClass = function (elem, c) {
             return elem.classList.contains(c);
         };
         addClass = function (elem, c) {
             elem.classList.add(c);
         };
         removeClass = function (elem, c) {
             elem.classList.remove(c);
         };
     } else {
         hasClass = function (elem, c) {
             return classReg(c).test(elem.className);
         };
         addClass = function (elem, c) {
             if (!hasClass(elem, c)) {
                 elem.className = elem.className + ' ' + c;
             }
         };
         removeClass = function (elem, c) {
             elem.className = elem.className.replace(classReg(c), ' ');
         };
     }

     function toggleClass(elem, c) {
         var fn = hasClass(elem, c) ? removeClass : addClass;
         fn(elem, c);
     }

     var classie = {
         // full names
         hasClass: hasClass,
         addClass: addClass,
         removeClass: removeClass,
         toggleClass: toggleClass,
         // short names
         has: hasClass,
         add: addClass,
         remove: removeClass,
         toggle: toggleClass
     };

     // transport
     if (typeof define === 'function' && define.amd) {
         // AMD
         define(classie);
     } else {
         // browser global
         window.classie = classie;
     }

 })(window);


 /**
  * main.js
  * http://www.codrops.com
  *
  * Licensed under the MIT license.
  * http://www.opensource.org/licenses/mit-license.php
  * 
  * Copyright 2014, Codrops
  * http://www.codrops.com
  */ (function () {

     var bodyEl = document.body,
         content = document.querySelector('.content-wrap'),
         openbtn = $(".menu-button").click(function () {
    $(this).next(".menu-wrap").toggleClass("show-menu");
}),
         closebtn = document.getElementById('close-button'),
         isOpen = false;

     function init() {
         initEvents();
     }

     function initEvents() {
         openbtn.addEventListener('click', toggleMenu);
         if (closebtn) {
             closebtn.addEventListener('click', toggleMenu);
         }

         // close the menu element if the target it´s not the menu element or one of its descendants..
         content.addEventListener('click', function (ev) {
             var target = ev.target;
             if (isOpen && target !== openbtn) {
                 toggleMenu();
             }
         });
     }

     function toggleMenu() {
         if (isOpen) {
             classie.remove(bodyEl, 'show-menu');
         } else {
             classie.add(bodyEl, 'show-menu');
         }
         isOpen = !isOpen;
     }

     init();

 })();</script>

我研究过人们在.addeventlistener中遇到类似问题的地方,但实际上他们的所有解决方案都是针对他们的代码执行的。如何在保留代码用途的同时解决此问题?

网站的HTML

代码语言:javascript
复制
<html lang="en-US" class="js"><head>
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}
</style>
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<link rel="stylesheet" id="genericons-css" href="http://generation-co.co/wp-content/plugins/jetpack/_inc/genericons/genericons/genericons.css?ver=3.1" type="text/css" media="all">
<link rel="stylesheet" id="twentyfifteen-style-css" href="http://generation-co.co/wp-content/themes/generation-1-1/style.css?ver=4.2.4" type="text/css" media="all">
<style id="twentyfifteen-style-inline-css" type="text/css">

        /* Custom Sidebar Text Color */
        .site-title a,
        .site-description,
        .secondary-toggle:before {
            color: #ffffff;
        }

        .site-title a:hover,
        .site-title a:focus {
            color: #ffffff; /* Fallback for IE7 and IE8 */
            color: rgba( 255, 255, 255, 0.7);
        }

        .secondary-toggle {
            border-color: #ffffff; /* Fallback for IE7 and IE8 */
            border-color: rgba( 255, 255, 255, 0.1);
        }

        .secondary-toggle:hover,
        .secondary-toggle:focus {
            border-color: #ffffff; /* Fallback for IE7 and IE8 */
            border-color: rgba( 255, 255, 255, 0.3);
        }

        .site-title a {
            outline-color: #ffffff; /* Fallback for IE7 and IE8 */
            outline-color: rgba( 255, 255, 255, 0.3);
        }

        @media screen and (min-width: 59.6875em) {
            .secondary a,
            .dropdown-toggle:after,
            .widget-title,
            .widget blockquote cite,
            .widget blockquote small {
                color: #ffffff;
            }

            .widget button,
            .widget input[type="button"],
            .widget input[type="reset"],
            .widget input[type="submit"],
            .widget_calendar tbody a {
                background-color: #ffffff;
            }

            .textwidget a {
                border-color: #ffffff;
            }

            .secondary a:hover,
            .secondary a:focus,
            .main-navigation .menu-item-description,
            .widget,
            .widget blockquote,
            .widget .wp-caption-text,
            .widget .gallery-caption {
                color: rgba( 255, 255, 255, 0.7);
            }

            .widget button:hover,
            .widget button:focus,
            .widget input[type="button"]:hover,
            .widget input[type="button"]:focus,
            .widget input[type="reset"]:hover,
            .widget input[type="reset"]:focus,
            .widget input[type="submit"]:hover,
            .widget input[type="submit"]:focus,
            .widget_calendar tbody a:hover,
            .widget_calendar tbody a:focus {
                background-color: rgba( 255, 255, 255, 0.7);
            }

            .widget blockquote {
                border-color: rgba( 255, 255, 255, 0.7);
            }

            .main-navigation ul,
            .main-navigation li,
            .secondary-toggle,
            .widget input,
            .widget textarea,
            .widget table,
            .widget th,
            .widget td,
            .widget pre,
            .widget li,
            .widget_categories .children,
            .widget_nav_menu .sub-menu,
            .widget_pages .children,
            .widget abbr[title] {
                border-color: rgba( 255, 255, 255, 0.1);
            }

            .dropdown-toggle:hover,
            .dropdown-toggle:focus,
            .widget hr {
                background-color: rgba( 255, 255, 255, 0.1);
            }

            .widget input:focus,
            .widget textarea:focus {
                border-color: rgba( 255, 255, 255, 0.3);
            }

            .sidebar a:focus,
            .dropdown-toggle:focus {
                outline-color: rgba( 255, 255, 255, 0.3);
            }
        }

</style>
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<link rel='stylesheet' id='twentyfifteen-ie-css'  href='http://generation-co.co/wp-content/themes/twentyfifteen/css/ie.css?ver=20141010' type='text/css' media='all' />
<![endif]-->
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<link rel='stylesheet' id='twentyfifteen-ie7-css'  href='http://generation-co.co/wp-content/themes/twentyfifteen/css/ie7.css?ver=20141010' type='text/css' media='all' />
<![endif]-->
<script type="text/javascript" src="http://generation-co.co/wp-includes/js/jquery/jquery.js?ver=1.11.2"></script><style type="text/css"></style>
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<link rel="wlwmanifest" type="application/wlwmanifest+xml" href="http://generation-co.co/wp-includes/wlwmanifest.xml"> 
<meta name="generator" content="WordPress 4.2.4">
    <style type="text/css">.recentcomments a{display:inline !important;padding:0 !important;margin:0 !important;}</style>
    <style type="text/css" id="twentyfifteen-header-css">
            .site-header {
            padding-top: 14px;
            padding-bottom: 14px;
        }

        .site-branding {
            min-height: 42px;
        }

        @media screen and (min-width: 46.25em) {
            .site-header {
                padding-top: 21px;
                padding-bottom: 21px;
            }
            .site-branding {
                min-height: 56px;
            }
        }
        @media screen and (min-width: 55em) {
            .site-header {
                padding-top: 25px;
                padding-bottom: 25px;
            }
            .site-branding {
                min-height: 62px;
            }
        }
        @media screen and (min-width: 59.6875em) {
            .site-header {
                padding-top: 0;
                padding-bottom: 0;
            }
            .site-branding {
                min-height: 0;
            }
        }
            .site-title,
        .site-description {
            clip: rect(1px, 1px, 1px, 1px);
            position: absolute;
        }
        </style>
    <style type="text/css" id="custom-background-css">
body.custom-background { background-color: #ffffff; }
</style>
</head>

<body class="home blog custom-background">
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                                    <button class="secondary-toggle">Menu and widgets</button>
            </div><!-- .site-branding -->
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            <div id="secondary" class="secondary">



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                        </li>
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</aside>
<!-- Start - HTML Javascript Adder plugin v3.9 -->
<aside id="html_javascript_adder-3" class="widget widget_html_javascript_adder">
<div class="hjawidget textwidget">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script>
 /*!
  * classie - class helper functions
  * classie.has( elem, 'my-class' ) -> true/false
  * classie.add( elem, 'my-new-class' )
  * classie.remove( elem, 'my-unwanted-class' )
  * classie.toggle( elem, 'my-class' )
  */

 /*jshint browser: true, strict: true, undef: true */
 /*global define: false */

 (function (window) {

     'use strict';

     // class helper functions from bonzo https://github.com/ded/bonzo

     function classReg(className) {
         return new RegExp("(^|s+)" + className + "(s+|$)");
     }

     // classList support for class management
     // altho to be fair, the api sucks because it won't accept multiple classes at once
     var hasClass, addClass, removeClass;

     if ('classList' in document.documentElement) {
         hasClass = function (elem, c) {
             return elem.classList.contains(c);
         };
         addClass = function (elem, c) {
             elem.classList.add(c);
         };
         removeClass = function (elem, c) {
             elem.classList.remove(c);
         };
     } else {
         hasClass = function (elem, c) {
             return classReg(c).test(elem.className);
         };
         addClass = function (elem, c) {
             if (!hasClass(elem, c)) {
                 elem.className = elem.className + ' ' + c;
             }
         };
         removeClass = function (elem, c) {
             elem.className = elem.className.replace(classReg(c), ' ');
         };
     }

     function toggleClass(elem, c) {
         var fn = hasClass(elem, c) ? removeClass : addClass;
         fn(elem, c);
     }

     var classie = {
         // full names
         hasClass: hasClass,
         addClass: addClass,
         removeClass: removeClass,
         toggleClass: toggleClass,
         // short names
         has: hasClass,
         add: addClass,
         remove: removeClass,
         toggle: toggleClass
     };

     // transport
     if (typeof define === 'function' && define.amd) {
         // AMD
         define(classie);
     } else {
         // browser global
         window.classie = classie;
     }

 })(window);


 /**
  * main.js
  * http://www.codrops.com
  *
  * Licensed under the MIT license.
  * http://www.opensource.org/licenses/mit-license.php
  * 
  * Copyright 2014, Codrops
  * http://www.codrops.com
  */ (function () {

     var bodyEl = document.body,
         content = document.querySelector('.content-wrap'),
         openbtn = $(".menu-button").click(function () {
    $(this).next(".menu-wrap").toggleClass("show-menu");
}),
         closebtn = document.getElementById('close-button'),
         isOpen = false;

     function init() {
         initEvents();
     }

     function initEvents() {
         openbtn = $(".menu-button");
openbtn.click(function () {
       $(this).next(".menu-wrap").toggleClass("show-menu");
});
         if (closebtn) {
             closebtn.addEventListener('click', toggleMenu);
         }

         // close the menu element if the target it´s not the menu element or one of its descendants..
         content.addEventListener('click', function (ev) {
             var target = ev.target;
             if (isOpen && target !== openbtn) {
                 toggleMenu();
             }
         });
     }

     function toggleMenu() {
         if (isOpen) {
             classie.remove(bodyEl, 'show-menu');
         } else {
             classie.add(bodyEl, 'show-menu');
         }
         isOpen = !isOpen;
     }

     init();

 })();</script>
</div>
</aside><!-- End - HTML Javascript Adder plugin v3.9 -->
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<article id="post-3" class="post-3 post type-post status-publish format-standard hentry category-uncategorized">

    <header class="entry-header">
        <h2 class="entry-title"><a href="https://generation-co.co/index.php/2015/08/17/test-2/" rel="bookmark">Test 2</a></h2>  </header><!-- .entry-header -->

    <div class="entry-content">
        <p><img src="https://igcdn-photos-h-a.akamaihd.net/hphotos-ak-xaf1/t51.2885-15/11809878_119652368381343_624710955_n.jpg" width="1080" height="1080" class="aligncenter"></p>
<p><br>
<button class="menu-button">Open Menu</button></p>
<div class="menu-wrap"></div>
<p><button class="menu-button" style="top: 560px;">Open Menu</button></p>
<div class="menu-wrap" style="top: 700px;">
</div>
<p></p>
    </div><!-- .entry-content -->


    <footer class="entry-footer">
        <span class="posted-on"><span class="screen-reader-text">Posted on </span><a href="https://generation-co.co/index.php/2015/08/17/test-2/" rel="bookmark"><time class="entry-date published" datetime="2015-08-17T22:02:36+00:00">August 17, 2015</time><time class="updated" datetime="2015-08-17T23:10:27+00:00">August 17, 2015</time></a></span><span class="comments-link"><a href="https://generation-co.co/index.php/2015/08/17/test-2/#respond">Leave a comment</a></span>           </footer><!-- .entry-footer -->

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<article id="post-1" class="post-1 post type-post status-publish format-standard hentry category-uncategorized">

    <header class="entry-header">
        <h2 class="entry-title"><a href="https://generation-co.co/index.php/2015/08/15/wordpress-resources-at-siteground/" rel="bookmark">WordPress Resources at SiteGround</a></h2>    </header><!-- .entry-header -->

    <div class="entry-content">
        <p>WordPress is an award-winning web software, used by millions of webmasters worldwide for building their website or blog. SiteGround is proud to host this particular WordPress installation and provide users with multiple resources to facilitate the management of their WP websites:</p>
<h3>Expert <a href="http://www.siteground.com/wordpress-hosting.htm">WordPress Hosting</a></h3>
<p>SiteGround provides superior WordPress hosting focused on speed, security and customer service. We take care of WordPress sites security with unique server-level customizations, WP auto-updates, and daily backups. We make them faster by regularly upgrading our hardware, offering free CDN with Railgun and developing our SuperCacher that speeds sites up to 100 times! And last but not least, we provide real WordPress help 24/7! Learn more about SiteGround WordPress hosting</p>
<h3>WordPress tutorial and knowledgebase articles</h3>
<p>WordPress is considered an easy to work with software. Yet, if you are a beginner you might need some help, or you might be looking for tweaks that do not come naturally even to more advanced users. SiteGround <a href="http://www.siteground.com/tutorials/wordpress/">WordPress tutorial</a> includes installation and theme change instructions, management of WordPress plugins, manual upgrade and backup creation, and more. If you are looking for a more rare setup or modification, you may visit <a href="http://kb.siteground.com">SiteGround Knowledgebase</a>.</p>
<h3><a href="http://www.siteground.com/wordpress-hosting/wordpress-themes.htm">Free WordPress themes</a></h3>
<p>SiteGround experts not only develop various solutions for WordPress sites, but also create unique designs that you could download for free. SiteGround WordPress themes are easy to customize for the particular use of the webmaster.</p>
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回答 2

Stack Overflow用户

发布于 2015-08-17 23:55:48

您将openbtn定义为jQuery对象,而不是dom对象。可以使用openbtn[0]获取dom元素,也可以在openbtn.on('click', function(){})中使用jQuery事件处理。

票数 2
EN

Stack Overflow用户

发布于 2015-08-18 00:20:06

问题是,您试图将addEventListner分配给一个对象数组,您需要循环使用它(以某种方式)这样做:

以下是工作代码:

代码语言:javascript
复制
/*!
 * classie - class helper functions
 * classie.has( elem, 'my-class' ) -> true/false
 * classie.add( elem, 'my-new-class' )
 * classie.remove( elem, 'my-unwanted-class' )
 * classie.toggle( elem, 'my-class' )
 */

/*jshint browser: true, strict: true, undef: true */
/*global define: false */

(function (window) {

 'use strict';

 // class helper functions from bonzo https://github.com/ded/bonzo

 function classReg(className) {
     return new RegExp("(^|\\s+)" + className + "(\\s+|$)");
 }

 // classList support for class management
 // altho to be fair, the api sucks because it won't accept multiple classes at once
 var hasClass, addClass, removeClass;

 if ('classList' in document.documentElement) {
     hasClass = function (elem, c) {
         return elem.classList.contains(c);
     };
     addClass = function (elem, c) {
         elem.classList.add(c);
     };
     removeClass = function (elem, c) {
         elem.classList.remove(c);
     };
 } else {
     hasClass = function (elem, c) {
         return classReg(c).test(elem.className);
     };
     addClass = function (elem, c) {
         if (!hasClass(elem, c)) {
             elem.className = elem.className + ' ' + c;
         }
     };
     removeClass = function (elem, c) {
         elem.className = elem.className.replace(classReg(c), ' ');
     };
 }

 function toggleClass(elem, c) {
     var fn = hasClass(elem, c) ? removeClass : addClass;
     fn(elem, c);
 }

 var classie = {
     // full names
     hasClass: hasClass,
     addClass: addClass,
     removeClass: removeClass,
     toggleClass: toggleClass,
     // short names
     has: hasClass,
     add: addClass,
     remove: removeClass,
     toggle: toggleClass
 };

 // transport
 if (typeof define === 'function' && define.amd) {
     // AMD
     define(classie);
 } else {
     // browser global
     window.classie = classie;
 }

})(window);


 /**
   * main.js
   * http://www.codrops.com
   *
   * Licensed under the MIT license.
   * http://www.opensource.org/licenses/mit-license.php
   * 
   * Copyright 2014, Codrops
   * http://www.codrops.com
   */ 
(function () {

 var bodyEl = document.body,
     content = document.querySelector('.content-wrap'),
     openbtn = $(".menu-button").click(function () {
        $(this).next(".menu-wrap").toggleClass("show-menu");
     }),
     closebtn = document.getElementById('close-button'),
     isOpen = false;


 function init() {
     initEvents();
 }

 function initEvents() {
    for (var i=0; i< openbtn.length ; i++){
        openbtn[i].addEventListener('click', toggleMenu)
    }

     if (closebtn) {
         closebtn.addEventListener('click', toggleMenu);
     }

      // close the menu element if the target it´s not the menu element or         one of its descendants..
     if (content){
        content.addEventListener('click', function (ev) {
             var target = ev.target;
             if (isOpen && target !== openbtn) {
                 toggleMenu();
             }
         });
     }

 }

 function toggleMenu() {
     if (isOpen) {
         classie.remove(bodyEl, 'show-menu');
     } else {
         classie.add(bodyEl, 'show-menu');
     }
     isOpen = !isOpen;
    }

     init();

 })();
票数 1
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接:

https://stackoverflow.com/questions/32061484

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