[英]Selecting all children of an element and fadeing them out using jQuery?
I am using the following HTML code: 我使用以下HTML代码:
<!DOCTYPE html>
<html>
<head>
<title>Project Quiz</title>
<link rel="stylesheet" type="text/css" href="z/baseCss.CSS">
<script src="/jquery-1.9.1.min.js"></script>
<script src="/baseJS.js"></script>
</head>
<body>
<div id=header></div>
<div id=contain>
<h1>Welcome to my web application</br>
Please enter your name, click 'continue' and have fun</h1>
<form>
<input type="text" id="name" value="John Doe"/>
</form>
<div class="awesome">Continue</div><br/>
</div>
<div id=footer></div>
</body>
</html>
and a code of jQuery: 和jQuery的代码:
$(document).ready(function(){
$("input")
.focus(function(){
$(this).css('outline-color','#559FFF');
$(this).blur(function(){
$(this).css("outline-color","#FF0000");
});
});
$("input").click(function(){
var value = $(this).val(function(){
$(this).html("");
});
});
$(".awesome").click(function(){
b._slide(1000);
});
var b = $("div:nth-child(2)");
alert(b);
});
My problem is that I can't figure it out how to select all children of <div id="contain">
and just make them fade out when I click my div button which is the one with the "awesome" class. 我的问题是,我无法弄清楚如何选择<div id="contain">
所有子项,并且当我点击我的div按钮时,它们会逐渐消失,这就是具有“awesome”类的按钮。
This is what I have tried so far: 这是我到目前为止所尝试的:
$(".contain").each(function(){
$(this).fadeOut(1000);
});
but it didnt work also i tried:
$(".contain").children(function(){
$(this).fadeOut(1000);
});
Same result here. 这里结果相同。
What am I doing wrong? 我究竟做错了什么? I only need to fadeOut
the content of <div id="contain">
and keep everything else the same as it is. 我只需要fadeOut
<div id="contain">
的内容,并保持其他所有内容不变。
You need to use: 你需要使用:
$("#contain").children().fadeOut(1000);
$(this)
is your selector $(this)
是你的选择器 .children()
selects all the children of an element .children()
选择元素的所有子元素 .fadeOut(1000)
fades out the current selection .fadeOut(1000)
淡出当前选择 Your attempts were wrong because: 你的尝试错了,因为:
$(".contain").each(function(){ $(this).fadeOut(1000); });
Selects all the elements with class .contain
and hides them 选择具有类.contain
所有元素并隐藏它们
$(".contain").children(function(){ $(this).fadeOut(1000); });
Selects the elements with class .contain
, and then you're passing a function to .children()
which it does not handle. 选择类为.contain
的元素,然后将函数传递给它不能处理的.contain
.children()
。
Note, in your case contain
is an ID and not a class. 请注意,在您的情况下, contain
ID而不是类。
beside shangeing the "." 旁边的“。” to "#" form the jquery selector, if you don't need to insert anything else or display new content into <div id="contain">
, you can just do this to“#”形成jquery选择器,如果你不需要插入任何其他内容或将新内容显示到<div id="contain">
,你可以这样做
$("#contain").fade(1000);
all the child will fade too 所有的孩子也会褪色
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