简单的可重用JavaScript toggle（）脚本？
我正在学习JavaScript，不知道如何处理一段简单的可重用代码简单的可重用JavaScript toggle（）脚本？,javascript,jquery,code-reuse,Javascript,Jquery,Code Reuse,我正在学习JavaScript，不知道如何处理一段简单的可重用代码 <div> <a id="title01" class="toggler">Title 1</a> <div class="body" id="body01">Body content for Title 1</div> <a id="title02" class="toggler">Title 2&
<div>
<a id="title01" class="toggler">Title 1</a>
<div class="body" id="body01">Body content for Title 1</div>
<a id="title02" class="toggler">Title 2</a>
<div class="body" id="body02">Body content for Title 2</div>
<a id="title03" class="toggler">Title 3</a>
<div class="body" id="body03">Body content for Title 3</div>
</div>
<script>
// set your initial variables
// ideally you will put these in a function which is not
// exposed to the global object
var togglers = document.getElementsByTagName('a'),
divs = document.getElementsByTagName('div'),
i, j;
// here you loop through your a elements and if they have
// a class of toggler you assign the onclick event to a toggle function
for ( i = 0; i < togglers.length; i += 1) {
if (togglers[i].className == 'toggler') {
togglers[i].onclick = toggle;
}
}
function toggle() {
// here you will cache the variable toToggle
// which is the div you want to toggle
var toToggle;
// loop through all divs and if they have a class of body
// you hide it
for (j = 0; j < divs.length; j += 1) {
if (divs[j].className == 'body') {
divs[j].className += ' hidden';
// this is tricky for a beginner. nodeType 1 is an element node
// nextSibling will get the nextSibling but if there is white space
// in your document it will return a text node when you have to toggle
// an element node. this just ensures that it will keep going until it
// finds and element node
if (this.nextSibling.nodeType !== 1) {
toToggle = this.nextSibling.nextSibling;
}
// then you toggle it by removing the hidden class
toToggle.className = 'body';
}
}
}
</script>
</body>
<a id="title01">Title 1</a>
<div id="body01">Body content for Title 1</div>
<a id="title02">Title 2</a>
<div id="body02">Body content for Title 2</div>
<a id="title03">Title 3</a>
<div id="body03">Body content for Title 3</div>
<div>
<a id="title01" class="toggler">Title 1</a>
<div class="body" id="body01">Body content for Title 1</div>
<a id="title02" class="toggler">Title 2</a>
<div class="body" id="body02">Body content for Title 2</div>
<a id="title03" class="toggler">Title 3</a>
<div class="body" id="body03">Body content for Title 3</div>
</div>
<script>
// set your initial variables
// ideally you will put these in a function which is not
// exposed to the global object
var togglers = document.getElementsByTagName('a'),
divs = document.getElementsByTagName('div'),
i, j;
// here you loop through your a elements and if they have
// a class of toggler you assign the onclick event to a toggle function
for ( i = 0; i < togglers.length; i += 1) {
if (togglers[i].className == 'toggler') {
togglers[i].onclick = toggle;
}
}
function toggle() {
// here you will cache the variable toToggle
// which is the div you want to toggle
var toToggle;
// loop through all divs and if they have a class of body
// you hide it
for (j = 0; j < divs.length; j += 1) {
if (divs[j].className == 'body') {
divs[j].className += ' hidden';
// this is tricky for a beginner. nodeType 1 is an element node
// nextSibling will get the nextSibling but if there is white space
// in your document it will return a text node when you have to toggle
// an element node. this just ensures that it will keep going until it
// finds and element node
if (this.nextSibling.nodeType !== 1) {
toToggle = this.nextSibling.nextSibling;
}
// then you toggle it by removing the hidden class
toToggle.className = 'body';
}
}
}
</script>
</body>
标题1
标题1的正文内容
标题2
标题2的正文内容
标题3
标题3的正文内容
<div>
<a id="title01" class="toggler">Title 1</a>
<div class="body" id="body01">Body content for Title 1</div>
<a id="title02" class="toggler">Title 2</a>
<div class="body" id="body02">Body content for Title 2</div>
<a id="title03" class="toggler">Title 3</a>
<div class="body" id="body03">Body content for Title 3</div>
</div>
<script>
// set your initial variables
// ideally you will put these in a function which is not
// exposed to the global object
var togglers = document.getElementsByTagName('a'),
divs = document.getElementsByTagName('div'),
i, j;
// here you loop through your a elements and if they have
// a class of toggler you assign the onclick event to a toggle function
for ( i = 0; i < togglers.length; i += 1) {
if (togglers[i].className == 'toggler') {
togglers[i].onclick = toggle;
}
}
function toggle() {
// here you will cache the variable toToggle
// which is the div you want to toggle
var toToggle;
// loop through all divs and if they have a class of body
// you hide it
for (j = 0; j < divs.length; j += 1) {
if (divs[j].className == 'body') {
divs[j].className += ' hidden';
// this is tricky for a beginner. nodeType 1 is an element node
// nextSibling will get the nextSibling but if there is white space
// in your document it will return a text node when you have to toggle
// an element node. this just ensures that it will keep going until it
// finds and element node
if (this.nextSibling.nodeType !== 1) {
toToggle = this.nextSibling.nextSibling;
}
// then you toggle it by removing the hidden class
toToggle.className = 'body';
}
}
}
</script>
</body>
谢谢 您可以使用jQuery使用以下方法执行此操作：
<div>
<a id="title01" class="toggler">Title 1</a>
<div class="body" id="body01">Body content for Title 1</div>
<a id="title02" class="toggler">Title 2</a>
<div class="body" id="body02">Body content for Title 2</div>
<a id="title03" class="toggler">Title 3</a>
<div class="body" id="body03">Body content for Title 3</div>
</div>
<script>
// set your initial variables
// ideally you will put these in a function which is not
// exposed to the global object
var togglers = document.getElementsByTagName('a'),
divs = document.getElementsByTagName('div'),
i, j;
// here you loop through your a elements and if they have
// a class of toggler you assign the onclick event to a toggle function
for ( i = 0; i < togglers.length; i += 1) {
if (togglers[i].className == 'toggler') {
togglers[i].onclick = toggle;
}
}
function toggle() {
// here you will cache the variable toToggle
// which is the div you want to toggle
var toToggle;
// loop through all divs and if they have a class of body
// you hide it
for (j = 0; j < divs.length; j += 1) {
if (divs[j].className == 'body') {
divs[j].className += ' hidden';
// this is tricky for a beginner. nodeType 1 is an element node
// nextSibling will get the nextSibling but if there is white space
// in your document it will return a text node when you have to toggle
// an element node. this just ensures that it will keep going until it
// finds and element node
if (this.nextSibling.nodeType !== 1) {
toToggle = this.nextSibling.nextSibling;
}
// then you toggle it by removing the hidden class
toToggle.className = 'body';
}
}
}
</script>
</body>
您可以使用以下方法使用jQuery执行此操作：
<div>
<a id="title01" class="toggler">Title 1</a>
<div class="body" id="body01">Body content for Title 1</div>
<a id="title02" class="toggler">Title 2</a>
<div class="body" id="body02">Body content for Title 2</div>
<a id="title03" class="toggler">Title 3</a>
<div class="body" id="body03">Body content for Title 3</div>
</div>
<script>
// set your initial variables
// ideally you will put these in a function which is not
// exposed to the global object
var togglers = document.getElementsByTagName('a'),
divs = document.getElementsByTagName('div'),
i, j;
// here you loop through your a elements and if they have
// a class of toggler you assign the onclick event to a toggle function
for ( i = 0; i < togglers.length; i += 1) {
if (togglers[i].className == 'toggler') {
togglers[i].onclick = toggle;
}
}
function toggle() {
// here you will cache the variable toToggle
// which is the div you want to toggle
var toToggle;
// loop through all divs and if they have a class of body
// you hide it
for (j = 0; j < divs.length; j += 1) {
if (divs[j].className == 'body') {
divs[j].className += ' hidden';
// this is tricky for a beginner. nodeType 1 is an element node
// nextSibling will get the nextSibling but if there is white space
// in your document it will return a text node when you have to toggle
// an element node. this just ensures that it will keep going until it
// finds and element node
if (this.nextSibling.nodeType !== 1) {
toToggle = this.nextSibling.nextSibling;
}
// then you toggle it by removing the hidden class
toToggle.className = 'body';
}
}
}
</script>
</body>
$('[id^=title]').click(function(){
var tmp = $(this).attr('id').split("title");
$('#body'+tmp[1]).toggle();
});
<div>
<a id="title01" class="toggler">Title 1</a>
<div class="body" id="body01">Body content for Title 1</div>
<a id="title02" class="toggler">Title 2</a>
<div class="body" id="body02">Body content for Title 2</div>
<a id="title03" class="toggler">Title 3</a>
<div class="body" id="body03">Body content for Title 3</div>
</div>
<script>
// set your initial variables
// ideally you will put these in a function which is not
// exposed to the global object
var togglers = document.getElementsByTagName('a'),
divs = document.getElementsByTagName('div'),
i, j;
// here you loop through your a elements and if they have
// a class of toggler you assign the onclick event to a toggle function
for ( i = 0; i < togglers.length; i += 1) {
if (togglers[i].className == 'toggler') {
togglers[i].onclick = toggle;
}
}
function toggle() {
// here you will cache the variable toToggle
// which is the div you want to toggle
var toToggle;
// loop through all divs and if they have a class of body
// you hide it
for (j = 0; j < divs.length; j += 1) {
if (divs[j].className == 'body') {
divs[j].className += ' hidden';
// this is tricky for a beginner. nodeType 1 is an element node
// nextSibling will get the nextSibling but if there is white space
// in your document it will return a text node when you have to toggle
// an element node. this just ensures that it will keep going until it
// finds and element node
if (this.nextSibling.nodeType !== 1) {
toToggle = this.nextSibling.nextSibling;
}
// then you toggle it by removing the hidden class
toToggle.className = 'body';
}
}
}
</script>
</body>
$('[id^=title]').click(function(){
var tmp = $(this).attr('id').split("title");
$('#body'+tmp[1]).toggle();
});
<div>
<a id="title01" class="toggler">Title 1</a>
<div class="body" id="body01">Body content for Title 1</div>
<a id="title02" class="toggler">Title 2</a>
<div class="body" id="body02">Body content for Title 2</div>
<a id="title03" class="toggler">Title 3</a>
<div class="body" id="body03">Body content for Title 3</div>
</div>
<script>
// set your initial variables
// ideally you will put these in a function which is not
// exposed to the global object
var togglers = document.getElementsByTagName('a'),
divs = document.getElementsByTagName('div'),
i, j;
// here you loop through your a elements and if they have
// a class of toggler you assign the onclick event to a toggle function
for ( i = 0; i < togglers.length; i += 1) {
if (togglers[i].className == 'toggler') {
togglers[i].onclick = toggle;
}
}
function toggle() {
// here you will cache the variable toToggle
// which is the div you want to toggle
var toToggle;
// loop through all divs and if they have a class of body
// you hide it
for (j = 0; j < divs.length; j += 1) {
if (divs[j].className == 'body') {
divs[j].className += ' hidden';
// this is tricky for a beginner. nodeType 1 is an element node
// nextSibling will get the nextSibling but if there is white space
// in your document it will return a text node when you have to toggle
// an element node. this just ensures that it will keep going until it
// finds and element node
if (this.nextSibling.nodeType !== 1) {
toToggle = this.nextSibling.nextSibling;
}
// then you toggle it by removing the hidden class
toToggle.className = 'body';
}
}
}
</script>
</body>
向DOM元素添加类，如下所示：
<a class="title" id="title01" href="">Title 1</a>
<div class="body" id="body01">Body content for Title 1</div>
<a class="title" id="title02" href="">Title 2</a>
<div class="body" id="body02">Body content for Title 2</div>
<a class="title" id="title03" href="">Title 3</a>
<div class="body" id="body03">Body content for Title 3</div>
$('.title').click(function(e){
e.preventDefault();
$(this).next('.body').toggle();
});
<div>
<a id="title01" class="toggler">Title 1</a>
<div class="body" id="body01">Body content for Title 1</div>
<a id="title02" class="toggler">Title 2</a>
<div class="body" id="body02">Body content for Title 2</div>
<a id="title03" class="toggler">Title 3</a>
<div class="body" id="body03">Body content for Title 3</div>
</div>
<script>
// set your initial variables
// ideally you will put these in a function which is not
// exposed to the global object
var togglers = document.getElementsByTagName('a'),
divs = document.getElementsByTagName('div'),
i, j;
// here you loop through your a elements and if they have
// a class of toggler you assign the onclick event to a toggle function
for ( i = 0; i < togglers.length; i += 1) {
if (togglers[i].className == 'toggler') {
togglers[i].onclick = toggle;
}
}
function toggle() {
// here you will cache the variable toToggle
// which is the div you want to toggle
var toToggle;
// loop through all divs and if they have a class of body
// you hide it
for (j = 0; j < divs.length; j += 1) {
if (divs[j].className == 'body') {
divs[j].className += ' hidden';
// this is tricky for a beginner. nodeType 1 is an element node
// nextSibling will get the nextSibling but if there is white space
// in your document it will return a text node when you have to toggle
// an element node. this just ensures that it will keep going until it
// finds and element node
if (this.nextSibling.nodeType !== 1) {
toToggle = this.nextSibling.nextSibling;
}
// then you toggle it by removing the hidden class
toToggle.className = 'body';
}
}
}
</script>
</body>
下面是向DOM元素添加类的演示，如下所示：
<a class="title" id="title01" href="">Title 1</a>
<div class="body" id="body01">Body content for Title 1</div>
<a class="title" id="title02" href="">Title 2</a>
<div class="body" id="body02">Body content for Title 2</div>
<a class="title" id="title03" href="">Title 3</a>
<div class="body" id="body03">Body content for Title 3</div>
$('.title').click(function(e){
e.preventDefault();
$(this).next('.body').toggle();
});
<div>
<a id="title01" class="toggler">Title 1</a>
<div class="body" id="body01">Body content for Title 1</div>
<a id="title02" class="toggler">Title 2</a>
<div class="body" id="body02">Body content for Title 2</div>
<a id="title03" class="toggler">Title 3</a>
<div class="body" id="body03">Body content for Title 3</div>
</div>
<script>
// set your initial variables
// ideally you will put these in a function which is not
// exposed to the global object
var togglers = document.getElementsByTagName('a'),
divs = document.getElementsByTagName('div'),
i, j;
// here you loop through your a elements and if they have
// a class of toggler you assign the onclick event to a toggle function
for ( i = 0; i < togglers.length; i += 1) {
if (togglers[i].className == 'toggler') {
togglers[i].onclick = toggle;
}
}
function toggle() {
// here you will cache the variable toToggle
// which is the div you want to toggle
var toToggle;
// loop through all divs and if they have a class of body
// you hide it
for (j = 0; j < divs.length; j += 1) {
if (divs[j].className == 'body') {
divs[j].className += ' hidden';
// this is tricky for a beginner. nodeType 1 is an element node
// nextSibling will get the nextSibling but if there is white space
// in your document it will return a text node when you have to toggle
// an element node. this just ensures that it will keep going until it
// finds and element node
if (this.nextSibling.nodeType !== 1) {
toToggle = this.nextSibling.nextSibling;
}
// then you toggle it by removing the hidden class
toToggle.className = 'body';
}
}
}
</script>
</body>
这里是一个演示，用于新的JS开发人员经常直接进入jQuery而不首先学习JavaScript作为一种语言。您肯定应该至少学习一些简单的JavaScript，以便能够更好地理解和使用jQuery的强大功能。切换的最佳方式是设置和删除类，而不是在元素上设置样式属性。也就是说你可以这样做
<div>
<a id="title01" class="toggler">Title 1</a>
<div class="body" id="body01">Body content for Title 1</div>
<a id="title02" class="toggler">Title 2</a>
<div class="body" id="body02">Body content for Title 2</div>
<a id="title03" class="toggler">Title 3</a>
<div class="body" id="body03">Body content for Title 3</div>
</div>
<script>
// set your initial variables
// ideally you will put these in a function which is not
// exposed to the global object
var togglers = document.getElementsByTagName('a'),
divs = document.getElementsByTagName('div'),
i, j;
// here you loop through your a elements and if they have
// a class of toggler you assign the onclick event to a toggle function
for ( i = 0; i < togglers.length; i += 1) {
if (togglers[i].className == 'toggler') {
togglers[i].onclick = toggle;
}
}
function toggle() {
// here you will cache the variable toToggle
// which is the div you want to toggle
var toToggle;
// loop through all divs and if they have a class of body
// you hide it
for (j = 0; j < divs.length; j += 1) {
if (divs[j].className == 'body') {
divs[j].className += ' hidden';
// this is tricky for a beginner. nodeType 1 is an element node
// nextSibling will get the nextSibling but if there is white space
// in your document it will return a text node when you have to toggle
// an element node. this just ensures that it will keep going until it
// finds and element node
if (this.nextSibling.nodeType !== 1) {
toToggle = this.nextSibling.nextSibling;
}
// then you toggle it by removing the hidden class
toToggle.className = 'body';
}
}
}
</script>
</body>
<div>
<a id="title01" class="toggler">Title 1</a>
<div class="body" id="body01">Body content for Title 1</div>
<a id="title02" class="toggler">Title 2</a>
<div class="body" id="body02">Body content for Title 2</div>
<a id="title03" class="toggler">Title 3</a>
<div class="body" id="body03">Body content for Title 3</div>
</div>
<script>
// set your initial variables
// ideally you will put these in a function which is not
// exposed to the global object
var togglers = document.getElementsByTagName('a'),
divs = document.getElementsByTagName('div'),
i, j;
// here you loop through your a elements and if they have
// a class of toggler you assign the onclick event to a toggle function
for ( i = 0; i < togglers.length; i += 1) {
if (togglers[i].className == 'toggler') {
togglers[i].onclick = toggle;
}
}
function toggle() {
// here you will cache the variable toToggle
// which is the div you want to toggle
var toToggle;
// loop through all divs and if they have a class of body
// you hide it
for (j = 0; j < divs.length; j += 1) {
if (divs[j].className == 'body') {
divs[j].className += ' hidden';
// this is tricky for a beginner. nodeType 1 is an element node
// nextSibling will get the nextSibling but if there is white space
// in your document it will return a text node when you have to toggle
// an element node. this just ensures that it will keep going until it
// finds and element node
if (this.nextSibling.nodeType !== 1) {
toToggle = this.nextSibling.nextSibling;
}
// then you toggle it by removing the hidden class
toToggle.className = 'body';
}
}
}
</script>
</body>
<div>
<a id="title01" class="toggler">Title 1</a>
<div class="body" id="body01">Body content for Title 1</div>
<a id="title02" class="toggler">Title 2</a>
<div class="body" id="body02">Body content for Title 2</div>
<a id="title03" class="toggler">Title 3</a>
<div class="body" id="body03">Body content for Title 3</div>
</div>
<script>
// set your initial variables
// ideally you will put these in a function which is not
// exposed to the global object
var togglers = document.getElementsByTagName('a'),
divs = document.getElementsByTagName('div'),
i, j;
// here you loop through your a elements and if they have
// a class of toggler you assign the onclick event to a toggle function
for ( i = 0; i < togglers.length; i += 1) {
if (togglers[i].className == 'toggler') {
togglers[i].onclick = toggle;
}
}
function toggle() {
// here you will cache the variable toToggle
// which is the div you want to toggle
var toToggle;
// loop through all divs and if they have a class of body
// you hide it
for (j = 0; j < divs.length; j += 1) {
if (divs[j].className == 'body') {
divs[j].className += ' hidden';
// this is tricky for a beginner. nodeType 1 is an element node
// nextSibling will get the nextSibling but if there is white space
// in your document it will return a text node when you have to toggle
// an element node. this just ensures that it will keep going until it
// finds and element node
if (this.nextSibling.nodeType !== 1) {
toToggle = this.nextSibling.nextSibling;
}
// then you toggle it by removing the hidden class
toToggle.className = 'body';
}
}
}
</script>
</body>
新的JS开发人员经常直接进入jQuery，而没有首先学习JavaScript作为一种语言。您肯定应该至少学习一些简单的JavaScript，以便能够更好地理解和使用jQuery的强大功能。切换的最佳方式是设置和删除类，而不是在元素上设置样式属性。也就是说你可以这样做
<div>
<a id="title01" class="toggler">Title 1</a>
<div class="body" id="body01">Body content for Title 1</div>
<a id="title02" class="toggler">Title 2</a>
<div class="body" id="body02">Body content for Title 2</div>
<a id="title03" class="toggler">Title 3</a>
<div class="body" id="body03">Body content for Title 3</div>
</div>
<script>
// set your initial variables
// ideally you will put these in a function which is not
// exposed to the global object
var togglers = document.getElementsByTagName('a'),
divs = document.getElementsByTagName('div'),
i, j;
// here you loop through your a elements and if they have
// a class of toggler you assign the onclick event to a toggle function
for ( i = 0; i < togglers.length; i += 1) {
if (togglers[i].className == 'toggler') {
togglers[i].onclick = toggle;
}
}
function toggle() {
// here you will cache the variable toToggle
// which is the div you want to toggle
var toToggle;
// loop through all divs and if they have a class of body
// you hide it
for (j = 0; j < divs.length; j += 1) {
if (divs[j].className == 'body') {
divs[j].className += ' hidden';
// this is tricky for a beginner. nodeType 1 is an element node
// nextSibling will get the nextSibling but if there is white space
// in your document it will return a text node when you have to toggle
// an element node. this just ensures that it will keep going until it
// finds and element node
if (this.nextSibling.nodeType !== 1) {
toToggle = this.nextSibling.nextSibling;
}
// then you toggle it by removing the hidden class
toToggle.className = 'body';
}
}
}
</script>
</body>
.hidden{显示：无；}
<div>
<a id="title01" class="toggler">Title 1</a>
<div class="body" id="body01">Body content for Title 1</div>
<a id="title02" class="toggler">Title 2</a>
<div class="body" id="body02">Body content for Title 2</div>
<a id="title03" class="toggler">Title 3</a>
<div class="body" id="body03">Body content for Title 3</div>
</div>
<script>
// set your initial variables
// ideally you will put these in a function which is not
// exposed to the global object
var togglers = document.getElementsByTagName('a'),
divs = document.getElementsByTagName('div'),
i, j;
// here you loop through your a elements and if they have
// a class of toggler you assign the onclick event to a toggle function
for ( i = 0; i < togglers.length; i += 1) {
if (togglers[i].className == 'toggler') {
togglers[i].onclick = toggle;
}
}
function toggle() {
// here you will cache the variable toToggle
// which is the div you want to toggle
var toToggle;
// loop through all divs and if they have a class of body
// you hide it
for (j = 0; j < divs.length; j += 1) {
if (divs[j].className == 'body') {
divs[j].className += ' hidden';
// this is tricky for a beginner. nodeType 1 is an element node
// nextSibling will get the nextSibling but if there is white space
// in your document it will return a text node when you have to toggle
// an element node. this just ensures that it will keep going until it
// finds and element node
if (this.nextSibling.nodeType !== 1) {
toToggle = this.nextSibling.nextSibling;
}
// then you toggle it by removing the hidden class
toToggle.className = 'body';
}
}
}
</script>
</body>
<div>
<a id="title01" class="toggler">Title 1</a>
<div class="body" id="body01">Body content for Title 1</div>
<a id="title02" class="toggler">Title 2</a>
<div class="body" id="body02">Body content for Title 2</div>
<a id="title03" class="toggler">Title 3</a>
<div class="body" id="body03">Body content for Title 3</div>
</div>
<script>
// set your initial variables
// ideally you will put these in a function which is not
// exposed to the global object
var togglers = document.getElementsByTagName('a'),
divs = document.getElementsByTagName('div'),
i, j;
// here you loop through your a elements and if they have
// a class of toggler you assign the onclick event to a toggle function
for ( i = 0; i < togglers.length; i += 1) {
if (togglers[i].className == 'toggler') {
togglers[i].onclick = toggle;
}
}
function toggle() {
// here you will cache the variable toToggle
// which is the div you want to toggle
var toToggle;
// loop through all divs and if they have a class of body
// you hide it
for (j = 0; j < divs.length; j += 1) {
if (divs[j].className == 'body') {
divs[j].className += ' hidden';
// this is tricky for a beginner. nodeType 1 is an element node
// nextSibling will get the nextSibling but if there is white space
// in your document it will return a text node when you have to toggle
// an element node. this just ensures that it will keep going until it
// finds and element node
if (this.nextSibling.nodeType !== 1) {
toToggle = this.nextSibling.nextSibling;
}
// then you toggle it by removing the hidden class
toToggle.className = 'body';
}
}
}
</script>
</body>
您必须使用纯javascript还是可以使用jQuery或其他库？jQuery有一个toggle（）方法。你也试过什么？发布您迄今为止尝试过的javascript。作为一名新手，我建议您开始使用jQuery，这将使您的生活更加轻松。您必须使用纯javascript，还是可以使用jQuery或其他库？jQuery有一个toggle（）方法。你也试过什么？发布您迄今为止尝试过的javascript。作为一名新手，我建议您开始使用jQuery，这将使您的生活更加轻松。如果body div总是在title div之后，我会推荐Sarfraz的解决方案。如果body div总是在title div之后，我会推荐Sarfraz的解决方案。我不同意，在学习jQuery时，我从整体上跳过了Javascript，每次看到一些标准Javascript，我都觉得自己做出了正确的选择。我想这完全是一个意见问题。如果您对成为一名专业的javascript开发人员不感兴趣，那么这可能无关紧要，因为jQuery提供了这么多插件。尽管如此，我仍然认为了解jQuery的功能是有益的。我认为说“如果你对成为一名专业的javascript开发人员不感兴趣”有点过分了。我自己编写了大部分的jQuery插件，所以我还在编程，我只是使用了（对我来说）更简单、更符合逻辑的方法。这取决于你自己的意见。我想知道jQuery是如何做到这一点的，所以我开始学习JavaScript。在很多情况下，我现在可以用纯JavaScript编写一个快速函数，就像以前一样，我将加载整个jQuery库，而不使用其中的3/4。因此，了解JavaScript对我来说是一个巨大的好处，而不仅仅是了解jQuery。我不同意这一点，我在学习jQuery时跳过了整个JavaScript，每次看到一些标准JavaScript，我都觉得我做出了正确的选择。我想这都是一个意见问题。如果您对成为一名专业的javascript开发人员不感兴趣，那么这可能无关紧要，因为jQuery提供了这么多插件。尽管如此，我仍然认为了解jQuery的功能是有益的。我认为说“如果你对成为一名专业的javascript开发人员不感兴趣”有点过分了。我自己编写了大部分的jQuery插件，所以我还在编程，我只是使用了（对我来说）更简单、更符合逻辑的方法。这取决于你自己的意见。我想知道jQuery是如何做到这一点的，所以我开始学习JavaScript。在很多情况下，我现在可以用纯JavaScript编写一个快速函数，就像以前一样，我将加载整个jQuery库，而不使用其中的3/4。因此，了解JavaScript对我来说是一个巨大的好处，而不仅仅是了解jQuery。
<div>
<a id="title01" class="toggler">Title 1</a>
<div class="body" id="body01">Body content for Title 1</div>
<a id="title02" class="toggler">Title 2</a>
<div class="body" id="body02">Body content for Title 2</div>
<a id="title03" class="toggler">Title 3</a>
<div class="body" id="body03">Body content for Title 3</div>
</div>
<script>
// set your initial variables
// ideally you will put these in a function which is not
// exposed to the global object
var togglers = document.getElementsByTagName('a'),
divs = document.getElementsByTagName('div'),
i, j;
// here you loop through your a elements and if they have
// a class of toggler you assign the onclick event to a toggle function
for ( i = 0; i < togglers.length; i += 1) {
if (togglers[i].className == 'toggler') {
togglers[i].onclick = toggle;
}
}
function toggle() {
// here you will cache the variable toToggle
// which is the div you want to toggle
var toToggle;
// loop through all divs and if they have a class of body
// you hide it
for (j = 0; j < divs.length; j += 1) {
if (divs[j].className == 'body') {
divs[j].className += ' hidden';
// this is tricky for a beginner. nodeType 1 is an element node
// nextSibling will get the nextSibling but if there is white space
// in your document it will return a text node when you have to toggle
// an element node. this just ensures that it will keep going until it
// finds and element node
if (this.nextSibling.nodeType !== 1) {
toToggle = this.nextSibling.nextSibling;
}
// then you toggle it by removing the hidden class
toToggle.className = 'body';
}
}
}
</script>
</body>