How to convert string with jquery

When developing with jQuery, sometimes we need to convert a jQuery object into a string. For example, you need to convert form data to a string when making an AJAX request, or you need to print out a jQuery object when printing debugging information. So, how do you convert a jQuery object to a string?

In fact, converting jQuery objects into strings is very simple, and jQuery provides a variety of methods to achieve this function. Below I will introduce you to some of the most commonly used methods.

Method 1: Use the $.fn.text() method

$.fn.text() method to obtain the plain text content of the specified element. If the element contains sub-elements, it will be ignored. HTML tags of child elements and merge text content.

For example, we have a div element:

<div id="test">
    <h1 id="标题">标题</h1>
    <p>段落1</p>
    <p>段落2</p>
</div>

We can use the following code to convert the div element into a string:

var str = $('#test').text();
console.log(str); // 输出：标题段落1段落2

Method 2: Use $.fn. html() method

$.fn.html() method can obtain the HTML code of the specified element, including HTML tags and text content.

For example, if there is a div element:

<div id="test">
    <h1 id="标题">标题</h1>
    <p>段落1</p>
    <p>段落2</p>
</div>

We can use the following code to convert the div element into a string:

var str = $('#test').html();
console.log(str); 
// 输出：
// <h1 id="标题">标题</h1>
// <p>段落1</p>
// <p>段落2</p>

Method 3: Use $.fn. serialize() method

$.fn.serialize() method can serialize the value of the form element into a string for use in AJAX requests.

For example, if there is the following form:

<form id="myForm">
  <input type="text" name="username" value="zhangsan">
  <input type="text" name="password" value="123456">
  <select name="gender">
    <option value="male" selected>男</option>
    <option value="female">女</option>
  </select>
  <label><input type="checkbox" name="hobby" value="movie" checked>电影</label>
  <label><input type="checkbox" name="hobby" value="music">音乐</label>
  <br>
  <input type="submit" value="提交">
</form>

We can use the following code to convert the form into a string:

var str = $('#myForm').serialize();
console.log(str); // 输出：username=zhangsan&password=123456&gender=male&hobby=movie

With the above three methods, we can convert the jQuery object Convert to string for easy use in development. Of course, there are other ways to achieve this functionality, these are just a few of the most common ones.

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