jquery sets span to hide

In the interface design of many websites, it often involves the display or hiding of certain elements. As for how to hide elements, the jquery framework provides a very convenient way. This article will focus on how jquery hides span elements.

1. Basic knowledge

Before explaining, we need to understand some basic knowledge.

1.1 Jquery framework

jquery is a very popular JavaScript framework. It provides many simple, fast and powerful functions for manipulating HTML documents, handling events, and performing animations and Effects etc. Through jquery, we can more easily operate DOM nodes and control HTML documents, making web design more flexible and interactive.

1.2 DOM node

DOM node refers to each element node in the Document Object Model (Document Object Model), such as span, div, etc. DOM nodes are created and managed in the browser, through which we can operate every element in the HTML document.

1.3 CSS style

CSS (Cascading Style Sheets) is a style sheet language used to modify HTML documents. Through CSS, we can define the style of HTML elements, including font style, background format, width and height, etc. CSS styles can make web pages have a more beautiful appearance and enhance the readability and operability of web pages.

2. Implementation method

In jquery, the element can be hidden through the .hide() method, which will prevent the element from being displayed on the web page. In order to hide the span element, we need the following steps:

2.1 Introduce the jquery framework into the HTML file.

Before using jquery, we need to introduce it into the HTML file first. The jquery framework can be introduced through CDN (Content Delivery Network). The code is as follows:

<script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>

2.2 Define the span element in the HTML file and set its style.

In order for the span element to be displayed on the web page and have the corresponding style, we need to define the span element in the HTML file and set its style. For example, to set the font color of the span element to red, the code is as follows:

<span id="mySpan" style="color:red;">Hello, World!</span>

2.3 Hide the span element through jquery code.

In order to hide the span element, we need to write a piece of jquery code to operate the DOM node. The code is as follows:

$("#mySpan").hide();

In the above code, we use the selector provided by the Jquery framework ( Selector) method, select the corresponding element for mySpan through the ID of the DOM node, and then use the .hide() method to hide the span element.

3. Example Application

Now, let’s give an example to demonstrate how to use jquery to hide span elements in web design.

If you want to set a button in the web page, click the button to hide the span element with the ID mySpan. The specific steps are as follows:

3.1 Write the HTML file

First , write the following code in the HTML file:

    
    
    <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>


    <span id="mySpan" style="color:red;">Hello, World!</span>
    

    隐藏文本    
        

In the above code, we first define a span element and set the attributes and styles with the ID "mySpan". Then we defined a button with the ID "hideSpan". When the button is clicked, jquery's .click() method is called and the response operation call is written in it to hide the span element.

3.2 Run HTML file

After the above code is completed, we save it as an HTML file and open it through the browser, you can see a text and a button. When the button is clicked, the text is hidden.

4. Summary

Through this article, we learned the basic knowledge of jquery framework, DOM nodes, CSS styles, and explained in detail how to use jquery framework to span elements Perform hiding operations. Finally, we also demonstrated an example to illustrate how to implement hiding operations on span elements through jquery in web design. Through studying this article, I believe you have a preliminary understanding of jquery's .hide() method, and a deeper understanding of its practical application in web design.

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