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How to remove attributes in javascript
- 青灯夜游Original
- 2021-04-08 14:57:058043browse
Removal method: First obtain the specified DOM object, and then use the removeAttribute() method to remove the attribute; the syntax format is "DOM object.removeAttribute (element's attribute name)". The removeAttribute() method can remove an attribute with a specified name.
The operating environment of this tutorial: windows7 system, javascript version 1.8.5, Dell G3 computer.
In javascript, you can use the removeAttribute() method to delete attributes.
The removeAttribute() method can remove the attribute with the specified name and has no return value.
Syntax:
element.removeAttribute(attributename)
Parameter attributename: The name of the attribute to be removed, cannot be omitted.
Example: Delete the style attribute of the header element
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>删除 header 元素的 style 属性</title>
</head>
<body>
<h1 style="color:red">Hello World</h1>
<p id="demo">点击按钮来删除标题中的 style 属性。</p>
<button onclick="myFunction()">试一下</button>
<script>
function myFunction() {
document.getElementsByTagName("H1")[0].removeAttribute("style");
}
</script>
</body>
</html>Rendering:
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