如何确定JavaScript中HTML元素的类型？

I need a way to determine the type of an HTML element in JavaScript. It has the id, but the element itself could be a div, a form field, a fieldset, etc. How can I achieve this?

我需要一种方法来确定JavaScript中HTML元素的类型。它有id，但元素本身可以是div，表单字段，字段集等。我怎样才能实现这个目标？

2 个解决方案

#1

192

nodeName is the attribute you are looking for. For example:

nodeName是您要查找的属性。例如：

var elt = document.getElementById('foo');
console.log(elt.nodeName);

Note that nodeName returns the element name capitalized and without the angle brackets, which means that if you want to check if an element is an <div> element you could do it as follows:

请注意，nodeName返回大写的元素名称而没有尖括号，这意味着如果要检查元素是否为

元素，可以按如下方式执行：

elt.nodeName == "DIV"

While this would not give you the expected results:

虽然这不会给你预期的结果：

elt.nodeName == "<div>"

#2

What about element.tagName?

element.tagName怎么样？

#1

192