element node : the html's tags, like <html> <body> and so on; text node : just like the contents of <p> =>"XXXXXXX", it is often included in element node, but not every element node has text node; attribute node
1. JavaScript中使用getElementById方法获取元素对象,然后使用getAttribute方法获取指定属性的值: ```javascript var element = document.getElementById("myElement"); var attributeValue = element.getAttribute("myAttribute"); ``` 2. Python中使用Selenium库来获取网页元素的属性值: ```python from selenium impor...
constelement=document.getElementById('myElement');constattributeValue=element.getAttribute('data-id');console.log(attributeValue); 1. 2. 3. In the above code, we first fetch the element using its ID and store it in theelementvariable. Then, we use thegetAttribute()method to get the value ...
如果一个元素有id特性(attribute),那我们就可以使用document.getElementById(id)方法获取该元素,无论它在哪里。 例如: Element //获取该元素let elem = document.getElementById('elem');//将该元素背景改为红色elem.style.background ='red'; 此外,还有一个通过id命名的全局变量,它引用了元素: Element ...
26、JavaScript 自定义ByClassName 27、JavaScript 获取当前有效样式 28、JavaScript attribute和元素节点属性...
1. getElementById()返回的是什么? 这个函数使用的最普遍,但是你有没有深入探究下,这个函数究竟返回的是什么么?我们来一起看看。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 varmydivEle=document.getElementById("mydiv");//alert(mydivEle);//输出:object HTMLDivElement【IE8只显示Object,Chrome...
(a=e.getElementById(i)))return n;if(a.id===i)return n.push(a),n}else if(f&&(a=f.getElementById(i))&&y(e,a)&&a.id===i)return n.push(a),n}else{if(u[2])return H.apply(n,e.getElementsByTagName(t)),n;if((i=u[3])&&d.getElementsByClassName&&e.getElementsByClassName)...
What I mean by that is you can use this method to select an element by class, id, element type, data attribute or a combination of those elements. Let’s take a look at the thequerySelectorAllJavascript method in action. First, let’s define our elements: ...
有些元素可能是在页面加载后通过JavaScript动态生成的。如果你尝试在元素生成前获取它们，getElementById()...
Learn about the Document.getElementById() method, including its syntax, code examples, specifications, and browser compatibility.