用按钮切换显示/隐藏div？

Question

希望这是一个简单的问题.我有一个div,我想用按钮切换隐藏/显示.

<div id="newpost">

Answer 1

纯JavaScript:

var button = document.getElementById('button'); // Assumes element with id='button'

button.onclick = function() {
    var div = document.getElementById('newpost');
    if (div.style.display !== 'none') {
        div.style.display = 'none';
    }
    else {
        div.style.display = 'block';
    }
};

看看演示

jQuery:

$("#button").click(function() { 
    // assumes element with id='button'
    $("#newpost").toggle();
});

看看演示

Answer 2

看看jQuery Toggle

HTML:

<div id='content'>Hello World</div>
<input type='button' id='hideshow' value='hide/show'>

jQuery的:

jQuery(document).ready(function(){
    jQuery('#hideshow').live('click', function(event) {        
         jQuery('#content').toggle('show');
    });
});

对于jQuery 1.7和更新版本的使用

jQuery(document).ready(function(){
    jQuery('#hideshow').on('click', function(event) {        
        jQuery('#content').toggle('show');
    });
});

演示

Answer 3

JavaScript - 切换Element.style^MDN

var toggle  = document.getElementById("toggle");
var content = document.getElementById("content");

toggle.addEventListener("click", function() {
  content.style.display = (content.dataset.toggled ^= 1) ? "block" : "none";
});

#content{
  display:none;
}

<button id="toggle">TOGGLE</button>
<div id="content">Some content...</div>

关于^按位异或为I/O toggler
https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/dataset

JavaScript - 切换 .classList.toggle()

var toggle  = document.getElementById("toggle");
var content = document.getElementById("content");

toggle.addEventListener("click", function() {
  content.classList.toggle("show");
});

#content{
  display:none;
}
#content.show{
  display:block; /* P.S: Use `!important` if missing `#content` (selector specificity). */
}

<button id="toggle">TOGGLE</button>
<div id="content">Some content...</div>

jQuery - 切换

.toggle()^文件 ; .fadeToggle()^文件 ; .slideToggle()^文件

$("#toggle").on("click", function(){
  $("#content").toggle();                 // .fadeToggle() // .slideToggle()
});

#content{
  display:none;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<button id="toggle">TOGGLE</button>
<div id="content">Some content...</div>

jQuery - 切换.toggleClass()^文档

.toggle()切换元素的display "block"/"none"值

$("#toggle").on("click", function(){
  $("#content").toggleClass("show");
});

#content{
  display:none;
}
#content.show{
  display:block; /* P.S: Use `!important` if missing `#content` (selector specificity). */
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<button id="toggle">TOGGLE</button>
<div id="content">Some content...</div>

HTML5 - 使用<summary>和切换<details>

(在IE和Opera Mini上不受支持)

<details>
  <summary>TOGGLE</summary>
  <p>Some content...</p>
</details>

HTML - 切换使用 checkbox

[id^=toggle],
[id^=toggle] + *{
  display:none;
}
[id^=toggle]:checked + *{
  display:block;
}

<label for="toggle-1">TOGGLE</label>

<input id="toggle-1" type="checkbox">
<div>Some content...</div>

HTML - 切换使用 radio

[id^=switch],
[id^=switch] + *{
  display:none;
}
[id^=switch]:checked + *{
  display:block;
}

<label for="switch-1">SHOW 1</label>
<label for="switch-2">SHOW 2</label>

<input id="switch-1" type="radio" name="tog">
<div>1 Merol Muspi...</div>

<input id="switch-2" type="radio" name="tog">
<div>2 Lorem Ipsum...</div>

CSS - 切换使用 :target

(只是为了确保你的武器库中有它)

[id^=switch] + *{
  display:none;
}
[id^=switch]:target + *{
  display:block;
}

<a href="#switch1">SHOW 1</a>
<a href="#switch2">SHOW 2</a>

<i id="switch1"></i>
<div>1 Merol Muspi ...</div>

<i id="switch2"></i>
<div>2 Lorem Ipsum...</div>

动画类过渡

如果您选择一种JS/jQuery方式来实际切换a className,您可以随时为元素添加动画过渡,这是一个基本示例:

var toggle  = document.getElementById("toggle");
var content = document.getElementById("content");

toggle.addEventListener("click", function(){
  content.classList.toggle("appear");
}, false);

#content{
  /* DON'T USE DISPLAY NONE/BLOCK! Instead: */
  background: #cf5;
  padding: 10px;
  position: absolute;
  visibility: hidden;
  opacity: 0;
          transition: 0.6s;
  -webkit-transition: 0.6s;
          transform: translateX(-100%);
  -webkit-transform: translateX(-100%);
}
#content.appear{
  visibility: visible;
  opacity: 1;
          transform: translateX(0);
  -webkit-transform: translateX(0);
}

<button id="toggle">TOGGLE</button>
<div id="content">Some Togglable content...</div>

Answer 4

这是一种简单的Javascript切换方式:

<script>
  var toggle = function() {
  var mydiv = document.getElementById('newpost');
  if (mydiv.style.display === 'block' || mydiv.style.display === '')
    mydiv.style.display = 'none';
  else
    mydiv.style.display = 'block'
  }
</script>

<div id="newpost">asdf</div>
<input type="button" value="btn" onclick="toggle();">