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jquery html object converted to string

王林
Release: 2023-05-25 13:02:37
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In front-end development, we often need to convert HTML objects into string form. In this way, we can store HTML content into the database more conveniently and manipulate the HTML structure more flexibly. In jQuery, we can use various methods to convert HTML objects into strings. This article will introduce you to several common methods.

1. Use the outerHTML method

In jQuery, we can use the outerHTML method to get the complete tag string of an HTML object, including the tag itself and its internal content. The following is a simple example:

<div id="myDiv">
    <p>Hello World</p>
</div>
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var obj = $('#myDiv')[0];
var str = obj.outerHTML;
console.log(str);
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Run the above code, the console will output the following content:

<div id="myDiv">
    <p>Hello World</p>
</div>
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In this example, we first use the jQuery selector to obtain an HTML object, and then Convert the object into a native JavaScript object, and finally use the outerHTML method to obtain the tag string of the object.

2. Use the innerHTML method

Unlike the outerHTML method, the innerHTML method will only return the content inside an HTML object, not the tag itself. The following is an example:

<div id="myDiv">
    <p>Hello World</p>
</div>
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var obj = $('#myDiv')[0];
var str = obj.innerHTML;
console.log(str);
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Run the above code, the console will output the following content:

<p>Hello World</p>
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In this example, we also use the jQuery selector to obtain an HTML object, and then The object is converted into a native JavaScript object, and the inner content of the object is finally obtained using the innerHTML method.

3. Use the clone method

In addition to the above two methods, we can also use the clone method to completely clone an HTML object and convert it into a string form. The specific code is as follows:

<div id="myDiv">
    <p>Hello World</p>
</div>
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var obj = $('#myDiv').clone().wrap('<div>').parent().html();
console.log(obj);
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Run the above code, the console will output the following content:

<div id="myDiv">
    <p>Hello World</p>
</div>
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In this example, we first use the jQuery selector to obtain an HTML object, and then use the clone method Completely clone the object, use the wrap and parent methods to wrap it into a div element, and obtain the html content of the element.

Summary

Through the introduction of this article, we can learn about several methods to convert HTML objects into strings in jQuery: outerHTML method, innerHTML method and clone method. Each of these methods has its own advantages and disadvantages, and we can choose the appropriate method for conversion according to specific scenarios. At the same time, when converting HTML objects, we also need to pay attention to some details, such as HTML object references, tag nesting, etc. Only after mastering these skills can we perform front-end development work more efficiently.

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