步骤1：

Question

如何将jQuery slidetoggle（）函数转换为Javascript？

 var $context = getContext(context);

        $($context).on('click', '.m_menu', function () {
            $('.w_nav').slideToggle();
        });

Answer 1

要将jquery slideToggle（）重新实现（转换）为原始javascript，您需要将jquery slideUp（）和 slideDown（）重新实现为好吧。

//getting the cert
var certificate = new X509Certificate2(@"[PATH_TO_CERT]", "[PASSWORD]");
//creating client's Ssl Stream
var clientStream = new SslStream(client, false);
await clientStream.AuthenticateAsServerAsync(certificate, false, SslProtocols.Tls | SslProtocols.Tls11 | SslProtocols.Tls12 | SslProtocols.Ssl3, false);

var DOMAnimations = {
    
    /**
    * SlideUp
    *
    * @param {HTMLElement} element
    * @param {Number} duration
    * @returns {Promise<boolean>}
    */
    slideUp: function (element, duration = 500) {

        return new Promise(function (resolve, reject) {

            element.style.height = element.offsetHeight + 'px';
            element.style.transitionProperty = `height, margin, padding`;
            element.style.transitionDuration = duration + 'ms';
            element.offsetHeight;
            element.style.overflow = 'hidden';
            element.style.height = 0;
            element.style.paddingTop = 0;
            element.style.paddingBottom = 0;
            element.style.marginTop = 0;
            element.style.marginBottom = 0;
            window.setTimeout(function () {
                element.style.display = 'none';
                element.style.removeProperty('height');
                element.style.removeProperty('padding-top');
                element.style.removeProperty('padding-bottom');
                element.style.removeProperty('margin-top');
                element.style.removeProperty('margin-bottom');
                element.style.removeProperty('overflow');
                element.style.removeProperty('transition-duration');
                element.style.removeProperty('transition-property');
                resolve(false);
            }, duration)
        })
    },

    /**
    * SlideDown
    *
    * @param {HTMLElement} element
    * @param {Number} duration
    * @returns {Promise<boolean>}
    */
    slideDown: function (element, duration = 500) {

        return new Promise(function (resolve, reject) {

            element.style.removeProperty('display');
            let display = window.getComputedStyle(element).display;

            if (display === 'none') 
                display = 'block';

            element.style.display = display;
            let height = element.offsetHeight;
            element.style.overflow = 'hidden';
            element.style.height = 0;
            element.style.paddingTop = 0;
            element.style.paddingBottom = 0;
            element.style.marginTop = 0;
            element.style.marginBottom = 0;
            element.offsetHeight;
            element.style.transitionProperty = `height, margin, padding`;
            element.style.transitionDuration = duration + 'ms';
            element.style.height = height + 'px';
            element.style.removeProperty('padding-top');
            element.style.removeProperty('padding-bottom');
            element.style.removeProperty('margin-top');
            element.style.removeProperty('margin-bottom');
            window.setTimeout(function () {
                element.style.removeProperty('height');
                element.style.removeProperty('overflow');
                element.style.removeProperty('transition-duration');
                element.style.removeProperty('transition-property');
            }, duration)
        })
    },

    /**
    * SlideToggle
    *
    * @param {HTMLElement} element
    * @param {Number} duration
    * @returns {Promise<boolean>}
    */
    slideToggle: function (element, duration = 500) {

        if (window.getComputedStyle(element).display === 'none') {

            return this.slideDown(element, duration);

        } else {

            return this.slideUp(element, duration);
        }
    }
}

// ------------------------------------------------------

document.addEventListener("DOMContentLoaded", function() {

    var button = document.getElementById('slideToggle');

    var cardElement = document.getElementById('firstCard');

    button.addEventListener('click', function(event) {

        event.preventDefault();

        DOMAnimations.slideToggle(cardElement);
    });

});

* {
    box-sizing: border-box;
}

/* Add a gray background color with some padding */
body {
    font-family: Arial;
    padding: 20px;
    background: #f1f1f1;
}

/* Header/Blog Title */
.header {
    padding: 10px;
    font-size: 24px;
    text-align: center;
    background: white;
}

/* Create two unequal columns that floats next to each other */
/* Left column */
.leftcolumn {   
    float: left;
    width: 100%;
}

/* Fake image */
.fakeimg {
    background-color: #aaa;
    width: 100%;
    padding: 20px;
}

/* Add a card effect for articles */
.card {
    position:relative;
    background-color: white;
    padding: 20px;
    margin-top: 20px;
}

#slideToggle {
    background-color: #f9f5f5;
    color: black;
    border: 2px solid #a9b5a9;
    padding: 5px;
    margin-top:20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    cursor: pointer;
    font-weight: bold;
    border-radius: 5px;
}

/* Clear floats after the columns */
.row:after {
    content: "";
    display: table;
    clear: both;
}

/* Footer */
.footer {
    padding: 20px;
    text-align: center;
    background: #ddd;
    margin-top: 20px;
}

/* Responsive layout - when the screen is less than 800px wide, make the two columns stack on top of each other instead of next to each other */
@media screen and (max-width: 800px) {
    .leftcolumn, .rightcolumn {   
        width: 100%;
        padding: 0;
    }
}

Answer 2

在香草中更简单的解决方案，我留在这里 html->

<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <link rel="stylesheet" href="css.css" />
    <script src="js.js"></script>
    <title>Document</title>
  </head>
  <body>
    <div class="menu">
      <div class="dropdown">Menu</div>
      <div class="menu_main">
        <div class="menu__item">Item 1</div>
        <div class="menu__item">Item 2</div>
        <div class="menu__item">Item 3</div>
      </div>
    </div>
    <div>
      text behind of menu
    </div>
  </body>
</html>

CSS

* {
  box-sizing: border-box;
}
.menu {
  display: block;
  position: relative;
  background-color: rgba(255, 0, 0, 0.3);
  width: 150px;
  height: 40px;
  font-family: monospace;
}

.dropdown {
  background-color: #4caf50;
  box-shadow: inset 2px 2px 30px 10px lime;
  display: block;
  cursor: pointer;
  text-align: center;
  padding: 7px 35px;
  color: white;
  position: relative;
  width: 100%;
  height: 100%;
  font-size: 1.5em;
  font-weight: 900;
  box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
}
.menu_main {
  position: absolute;
  height: 0%; /* 300 */
  width: 100%;
  overflow: hidden;
  transition: height 1250ms;
  background-color: rgba(0, 255, 0, 0.2);
}

.menu__item {
  font-size: 1.4em;
  text-align: center;
  font-weight: 900;
  line-height: 40px;
  height: 34%;
  background-color: rgb(189, 243, 201);
}

JS

document.addEventListener("DOMContentLoaded", function () {
  const boton = document.getElementsByClassName("dropdown")[0];

  boton.addEventListener(
    "click",
    function (e) {
      if (
        window
          .getComputedStyle(e.target.nextElementSibling, null)
          .getPropertyValue("height") == "0px"
      ) {
        e.target.nextElementSibling.style.height = "300%";
      } else {
        e.target.nextElementSibling.style.height = "0%";
      }
    },
    false
  );
});

此代码没有slideUp和SlideDown，它们在一起。一次使用

Answer 3

You Just need Vanilla Js to accomplish what you need, by the way Here is the laziest way

//i  hope this will solve your issue
<html lang="en-US">
  <head>
   <meta charset="utf-8">
    <meta name="viewport" content="width=device-width,initial-scale=0.1,shrink-to-fit=no">
     <link type="text/css" href="/css" rel="stylesheet">
      <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
       <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
       <title>slideToggle</title>
        <style>
.toggle-navigation{
  transition: all .3s ease-in-out !important;
  margin:100px auto;
}
.toggle-content{
transition: all .3s ease-in-out !important;
}
 </style>
</head>
   <body>
    <div class="toggle navigation bg-primary w-25" id="toggle-nav" onclick = "toggleNavigation();">
     <p class="text-white text-center font-weight-bold">Click To Expand</p>
      <div class="toggle-content" id="toggle-content">
       <p class="text-white font-weight-bold text-justify">
Lorem Ipsum Dolor Sit Amet , Lorem Ipsum Dolor Sit Amet
Lorem Ipsum Dolor Sit Amet , Lorem Ipsum Dolor Sit Amet
Lorem Ipsum Dolor Sit Amet , Lorem Ipsum Dolor Sit Amet
Lorem Ipsum Dolor Sit Amet , Lorem Ipsum Dolor Sit Amet
Lorem Ipsum Dolor Sit Amet , Lorem Ipsum Dolor Sit Amet
         </p>
        </div>
       </div>
<script>
let toggleNav = document.getElementById('toggle-nav');
    navHeight = toggleNav.offsetHeight;
    content= document.getElementById('toggle-content');
    contentHeight = content.offsetTop - content.offsetTop;
    content.style.height = contentHeight;

    toggle = true ;
    function toggleNavigation(){
    if(toggle){
    content.style.height = navHeight;
    }else{
    content.style.height = contentHeight;
    }
    toggle = !toggle;
}
    </script>
   </body>
  </html>

Answer 4

我给出一个简短的答案。您可以将其视为最基本的示例，也可以根据自己的喜好使用它，然后对其进行样式设置。

在开始之前，我想澄清一下，我并没有将jQuery slideToggle()函数转换为JavaScript中的一个函数

我要做的就是尝试以最简单的形式复制该功能！

步骤1：

创建一个按钮/（任何其他元素），您可以将其与eventListener链接。

步骤2：

创建一个元素，您可以对其进行切换/滑动/随便调用它！

步骤3：

继续您的javaScript，并为与该setInterval()链接的函数创建有条件的 eventListener。

您可以在评论部分中给出建议。

var animxB = 0;
var anim2B = 0;
document.getElementById("animB").addEventListener("click", performB);

function performB() {
anim2B++;
anim3B = anim2B % 2;
var fram1B = setInterval(framB, 1);

function framB() {
    if (anim3B == 1) {
        animxB++;
        document.getElementById("divB").style.width = animxB + "px";
        document.getElementById("divB").style.height = animxB + "px";
        if (animxB >= 200) {
            clearInterval(fram1B);
            document.getElementById("animB").innerHTML = "Click(-)";
        }
    }
    if (anim3B == 0) {
        animxB--;
        document.getElementById("divB").style.width = animxB + "px";
        document.getElementById("divB").style.height = animxB + "px";
        if (animxB <= 0) {
            clearInterval(fram1B);
            document.getElementById("animB").innerHTML = "Click(+)";
        }
    }


}
}

<!DOCTYPE html>
<html>

<head></head>

<body>
<button id="animB" style="font-weight:bold; color:brown;">Click(+)</button>
<div id="divB" style="width:0; height:0; overflow:auto; color:gray; font-family:sans-serif; font-size:13px;">
    &lt;path d="M10 10 v80 h80 v-80 h-80" fill="gray" stroke="black" stroke-width="1" /&gt; &lt;path d="M40 10 v20" stroke="blue" stroke-width="0.5" /&gt; &lt;path d="M10 30 h30" stroke="red" stroke-width="0.5" /&gt; &lt;circle cx="40" cy="30" r="2" fill="purple" stroke="purple" stroke-width="1" /&gt;
</div>
</body>

</html>

将Jquery slidetoggle代码转换为Javascript

4 个答案:

步骤1：

步骤2：

步骤3：