How do I hide an HTML element before the page loads using jQuery
I have some JQuery code that shows or hides a div.
$("div#extraControls").show(开发者_如何学编程); // OR .hide()
I initially want the div to be not visible so I used:
$(document).ready(function() {
$("div#extraControls").hide();
});
However, on the browser, the content loads visible for a second before disappearing, which is not what I want.
How do I set the hide the element before the page loads whilst keeping the ability to show hide it dynamically with a script?
div.hidden
{
display: none
}
<div id="extraControls" class="hidden">
</div>
$(document).ready(function() {
$("div#extraControls").removeClass("hidden");
});
Make a css class
.hidden {
display: none;
}
Add this to any element you don't want to be visible when loading the page. Then use $("div#extraControls").show(); to display it again.
With CSS3 you can actually hide content until a page loads by taking advantage of the :only-child selector.
Here is a demonstration of how to do this. The basic idea is that CSS while loading will add a single node to the DOM while loading that node and its child nodes. Further, once a second child is added to the given parent node the :only-child selector rule is broken. We match against this selector and set display: none to hide the given node.
<!doctype html>
<html>
<head>
<title>Hide content until loaded with CSS</title>
<style type="text/css" media="screen">
.hide-single-child > :only-child {
display: none;
}
</style>
</head>
<body>
<div class='hide-single-child'>
<div>
<h1>Content Hidden</h1>
<script>
alert('Note that content is hidden until you click "Ok".');
</script>
</div>
<div></div>
</div>
</body>
</html>
In CSS:
#extraControls { display: none; }
Or in HTML:
<div id="extraControls" style="display: none;"></div>
#toggleMe //Keep this in your .css file
{
display:none;
visibility:inherit;
background-color:#d2d8c9;
}
<a href="#" onclick="return false;">Expand Me</a>
///this way u can make a link to act like a button too
<div id="toggleMe"> //this will be hidden during the page load
//your elements
</div>
///if you decide to make it display on a click, follow below:
<script type="text/javascript" src="jquery.js"> </script> //make sure u include jquery.js file in ur project
<script type="text/javascript">
$(document).ready(function () {
$("a").click(function () {
$('#toggleMe').toggle("slow"); //Animation effect
});
});
</script>
///Now for every alternate click, it shows and hides, but during page load; its hidden.
//Hope this helps you guys ...
The best way to load javascript function over page is loaded, is
$(window).bind("load", function() {
// code here
});
In your case
div.hidden
{
display: none
}
<div id="extraControls" class="hidden">
</div>
$(window).bind("load", function() {
$("div#extraControls").removeClass("hidden");
});
What you could do is insert a inline script tag at the end of the document, or immediately after the div with id "extraControls". Should be fire a little sooner than.
<div id="extraControls">i want to be invisible!</div>
<script type="text/javascript">$("div#extraControls").hide()</script>
Of course you could do this server-side as well, but maybe there's a good reason you don't want to do that (like, have the controls visible if the browser does NOT support javascript).
加载中,请稍侯......
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