jQuery is a commonly used JavaScript library, often used in web development. In web pages, sometimes it is necessary to hide some elements when the page is loaded and not display them until the user performs a specific operation. So how to use jQuery to achieve this effect? This article will introduce you to the specific implementation method.
First, load the jQuery library file before using jQuery. In the html file, it can be referenced by the following code:
<script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
After quoting, we can use the method in jQuery to set an element to be hidden when the page is loaded. So what is the specific implementation method?
$(document).ready(function(){ $("#element").hide(); });
In the above code, we use the $(document).ready()
method to indicate that when the document is loaded, the following code is executed: Get the element with the id "element" , and hide it.
It should be noted here that the hiding operation set through jQuery is to set the display attribute of the element to none. Hidden elements still exist in the document flow, but are not visible on the page. This is similar to controlling the hiding of elements through the display attribute in CSS.
Sometimes, the user needs to perform some specific operations for the element to be displayed. So what do we do? We can use some event functions in jQuery, such as click function, mouseenter function, etc. Here we take the click function as an example:
$(document).ready(function(){ $("#button").click(function(){ $("#element").show(); }); });
In the above code, we registered the click function on the element with the id of "button". When the user clicks on the element, the element with the id "element" is displayed through the $("#element").show()
method.
Similarly, we can also use other event functions to achieve this effect.
In addition to showing and hiding elements, jQuery also provides many other effect functions to beautify the page. For example, the element is gradually displayed through the fadeIn() function; the element is animated through the animate() function; the CSS style of the element is changed through the toggleClass() function, etc. These can all be easily achieved through jQuery.
In short, through jQuery, we can easily display and hide page elements, bringing a better user experience to users. At the same time, it can also better achieve the beautification effect of the page. Hope this article can be helpful to you.
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