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 ...
element node : the html's tags, like and so on; text node : just like the contents of =>"XXXXXXX", it is often included in element node, but not every element node has text node; attribute node : description of elements, like almost every element node has an attribute node "tit...
2、获取属性:dom.getAttribute("属性名") 3、检查属性是否存在:dom.hasAttribute("属性名") //true false 4、删除DOM结点中的自定义属性:removeAttribute("属性名") 5、获取dom的class dom.classList 返回元素的class 列表 返回的是数组形式['box','content'] 6、添加dom的class:dom.classList.add("date")...
createAttributeNS(namespaceURI, attributeName),以给定的属性名 attributeName 创建指定命名空间 namespaceURI 的一个新属性; getElementsByTagNameNS(namespaceURI, tagName),返回指定命名空间 namespaceURI 中所有标签名为 tagName 的元素的 NodeList。 Element 的变化 DOM2 Core 对 Element 类型的更新主要集中在对属...
1,r),(o=s in e)&&(a=e[s])),(a=parseFloat(a)||0)+Ke(e,t,n||(i?"border":"content"),o,r,a)+"px"}function et(e,t,n,r,i){return new et.prototype.init(e,t,n,r,i)}S.extend({cssHooks:{opacity:{get:function(e,t){if(t){var n=Be(e,"opacity");return""===n...
vareditor =document.getElementById('editor'); editor.contentDocument.designMode ='on'; 2.7、document.implementation document.implementation属性返回一个DOMImplementation对象。该对象有三个方法,主要用于创建独立于当前文档的新的 Document 对象。 DOMImplementation...
Top-levels are represented by the class TopLevel and its subclasses: TopLevel Script: a stand-alone file or HTML element ExternalScript: a stand-alone JavaScript file InlineScript: code embedded inline in an HTML tag CodeInAttribute: a code block originating from an HTML attribute value Even...
A JavaScript changes the content (innerHTML) of that element to "New Heading" Changing the Value of an Attribute To change the value of an HTML attribute, use this syntax: document.getElementById(id).attribute = new value This example changes the value of the src attribute of anelement:...
document.getElementsByTagName(name)Find elements by tag name document.getElementsByClassName(name)Find elements by class name Changing HTML Elements PropertyDescription element.innerHTML =new html contentChange the inner HTML of an element element.attribute = new valueChange the attribute value of an HT...