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How to set value to a tag in javascript
- PHPzOriginal
- 2023-04-24 10:54:051583browse
First we need to understand the basic usage and attributes of the a tag. The
a tag is a link tag in HTML that opens a link to another document, page, or resource. Its href attribute is usually used to specify the target address of the link, while other attributes are used to specify the link style or request method, etc.
In JavaScript, we can operate HTML elements through the DOM (Document Object Model) to set a value for the a tag. The specific steps are as follows:
1. Get the a tag element
We can get the a tag element through the getElementById, getElementsByClassName, getElementsByTagName and other methods of the document object. Take the a tag with the id as link as an example:
var link = document.getElementById('link');
2. Set the attribute value of the a tag
According to the needs, you can set the href, title, target, onclick and other attribute values of the a tag . Take setting the href attribute value to "https://www.example.com" as an example:
link.href = 'https://www.example.com';
Complete code example:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>JavaScript给a标签设置值</title>
</head>
<body>
<a id="link" href="#">点击我</a>
<script>
var link = document.getElementById('link');
link.href = 'https://www.example.com';
</script>
</body>
</html>
Through the above code, we can implement JavaScript to give a tag The function of setting value is gone.
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