jQuery is a widely used JavaScript library that simplifies the writing of JavaScript and makes it easier for developers to manipulate elements and content in HTML documents. One of the common needs is to obtain text content in HTML documents. This article will introduce two common methods of obtaining text in jQuery.
1. text() method
The text() method is a built-in method of jQuery that can be used to obtain the text content of an element. Using this method, we can easily obtain the text information of any element in the HTML document. The following is a simple example that will demonstrate how to obtain the text information of an element:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>jQuery text()方法演示</title>
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
</head>
<body>
<div id="test">这是一个例子</div>
<script>
var text = $('#test').text();
alert(text);
</script>
</body>
</html>In this example, we first introduced the jQuery library, and then created a div element with the id "test", And use the text() method to get its text content and store the result in a variable named text. Finally, a pop-up window is called to output the value of this variable to the screen.
2. html() method
In addition to the text() method, there is also a method called html(), which can be used to obtain the HTML content of an element. The difference between this method and the text() method is that it can obtain content other than the element text, such as all labels and text. Here is a simple example that will demonstrate how to use the html() method to get the HTML content of an element:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>jQuery html()方法演示</title>
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
</head>
<body>
<div id="test"><b>这是</b>一个例子</div>
<script>
var html = $('#test').html();
alert(html);
</script>
</body>
</html>In this example, we create a div element with the id "test" which contains A tag and a text. We get its HTML content using the html() method and store the result in a variable called html. Finally, a pop-up window is called to output the value of this variable to the screen.
Summary
The above are two common methods of obtaining text. The text() and html() methods are both built-in methods in jQuery. You can use them to easily obtain the text in the HTML document. The text or HTML content of any element. When writing jQuery code, we should choose the appropriate method based on actual needs. If we only need the text content, we can use the text() method; if we need to get the entire content of the element, including labels and text, we can use the html() method.
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