The methods that jquery can use to operate text are: 1. The "text()" method is used to set or return the text content of the selected element; 2. The "html()" method is used to set or return the selected element. The HTML content of the element; 3. The "val()" method is used to get or set the value of the form element; 4. The "textContent" method is used to get and set the text content.
The operating system of this tutorial: Windows 10 system, jQuery3.6.0 version, Dell G3 computer.
In jQuery, there are many ways to manipulate text. Here are some of the common methods and their respective advantages and disadvantages.
1. text()
text() method is used to set or return the text content of the selected element. This method returns the text content of the selected element, including the text content of all descendant elements.
```javascript // 设置元素的文本内容 $(selector).text(content); // 获取元素的文本内容 $(selector).text(); ```
Advantages: Simple to use, you can get and change the text content of elements.
Disadvantages: If the element contains HTML tags, these tags will be escaped.
2. html()
html() method is used to set or return the HTML content of the selected element. This method returns the HTML content of the selected element, including the HTML content of all descendant elements.
```javascript // 设置元素的HTML内容 $(selector).html(content); // 获取元素的HTML内容 $(selector).html(); ```
Advantages: You can get and change the HTML content of the element, and the HTML tag will be parsed into the corresponding DOM element.
Disadvantages: There is a risk of XSS attacks because attackers can exploit this vulnerability by injecting executable code.
3. val()
The val() method is used to get or set the value of the form element.
```javascript // 设置表单元素的值 $(selector).val(value); // 获取表单元素的值 $(selector).val(); ```
Advantages: You can get and change the values of form elements.
Disadvantages: It can only be used for form elements and cannot be used for other elements.
4. textContent
Like the JavaScript native API, we can also use the `textContent` attribute equivalent to the `text()` jQuery method.
```javascript // 获取元素的文本内容 $(selector)[0].textContent; // 设置元素的文本内容 $(selector)[0].textContent = content; ```
The above are some common methods for jQuery to operate text and their respective advantages and disadvantages. Specific selection
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