jquery add html-Front-end Q&A-php.cn

jQuery is a concise JavaScript library that makes it very simple to manipulate HTML documents in a more convenient way. Among them, jQuery provides many methods for manipulating and modifying elements in HTML documents. This article will introduce how to add HTML in jQuery according to the title.

1. What is adding HTML?

HTML (Hyper Text Markup Language) is a language used to describe the structure of web pages. When we browse a web page, everything we see is built from HTML code. In jQuery, we can modify the content of the web page by adding or modifying these HTML codes.

Adding HTML usually refers to adding new HTML elements or HTML content inside or outside an HTML element. These operations can be achieved through some methods in jQuery. In the following content, we will show some examples how to use these methods.

2. Add HTML inside an element

append() method

jQuery’s append() method can be added at the end inside an element One or more contents. In the following example, we will use this method to add a

element within an element.

HTML code:

<div id="container">
  <!--这里是一些内容-->
</div>

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jQuery code:

$("#container").append("<div>这是新增的元素</div>");

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When we run this code, a new < will be added inside the element with the id of "container" div> element, the content is "This is a new element".

prepend() method

The prepend() method is similar to the append() method. The difference is that it adds a new element at the front of an element. content. In the following example, we will use this method to add a new

element inside a

element.

HTML code:

<div id="container">
  <!--这里是一些内容-->
</div>

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jQuery code:

$("#container").prepend("<p>这是新增的段落</p>");

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Similarly, when we run this code, it will be added to the front of the element with the id of "container" A new

element with the content "This is a new paragraph".

3. Add HTML outside an element

after() method

jQuery’s after() method can add new content after an element Content. In the following example, we will use this method to add a

element after an element.

HTML code:

<div id="container">
  <!--这里是一些内容-->
</div>

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jQuery code:

$("#container").after("<div>这是新增的元素</div>");

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When we run this code, a new < will be added after the element with the id of "container" div> element, the content is "This is a new element".

before() method

The before() method is similar to the after() method. The difference is that it adds new content in front of an element. In the following example, we will use this method to add a

element in front of an element.

HTML code:

<div id="container">
  <!--这里是一些内容-->
</div>

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jQuery code:

$("#container").before("<p>这是新增的段落</p>");

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Similarly, when we run this code, a new element will be added in front of the element with the id of "container"

element, the content is "This is a new paragraph".

4. Summary

Through the introduction of this article, we can learn how to add HTML elements or HTML content in jQuery, and how to add it inside or outside the element. In actual development, we can choose different methods according to needs to modify the HTML document.

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