Node类型
- node.nodeType:
- Node.ELEMENT_NODE(1);
- Node.ATTRIBUTE_NODE(2);
- Node.TEXT_NODE(3);
- Node.CDATA_SECTION_NODE(4);
- Node.ENTITY_PREFERENCE_NODE(5);
- Node.ENTITY_NODE(6);
- Node.PROCESSING_INSTRUCTION_NODE(7);
- Node.COMMENT_NODE(8);
- Node.DOCUMENT_NODE(9);
- Node.DOCUMENT_TYPE_NODE(10);
- Node.DOCUMENT_FRAGMENT_NODE(11);
- Node.NOTATION_NODE(12);
- node.nodeName: 标签名
- node.childNodes[0] node.childNodes.item(0);
- node.childNodes.length;
- node.parentNode;
- node.nextSibling;
- node.previousSibling;
- node.firstChild;
- node.lastChild;
- node.appendChild(newNode);
- node.insertBefore(newNode);
- node.replaceChild(newNode, oldNode);
- node.removeChild(node);
- node.cloneNode(true//深复制)
HTMLDocument类型
- document.nodeType = 9
- document.nodeName = “#document”
- document.nodeValue = null
- document.parentNode = null
- document.ownerDocument = null
- document.firstChild === document.childNodes[0] === document.documentElement 都指向元素
- document.body指向元素
- document.head
- document.charset
- document.URL;
- document.title;
- document.domain;
- document.getElementById();
- document.getElementByClassName();
- document.getElementsByTagName();
- document.getElementsByName();
- document.images;
- document.anchors;
- document.links;
- document.forms;
- document.createElement(‘div’)
- document.activeElement: 指向获得焦点的元素
- document.readyState // loading or complete
Element类型
var elem = document.getElementById(‘elem_id’);
- elem.nodeType = 1
- elem.nodeName 为元素的标签名
- elem.nodeValue = null
- elem.parentNode 为document或者Element
- elem.nodeName === elem.tagName
- elem.getAttribute(“id”)
- elem.setAttribute(“id”, “new_id”)
- elem.attributes.getNamedItem(‘id’)
- elem.attributes.removeNamedItem(‘id’)
- elem.attributes.setNamedItem(new_attr)
- elem.getElementsByTagName()
- elem.dataset // data- 前缀自定义的属性及属性值
- elem.innerHTML // 元素的内容(所有子节点HTML)
- elem.scrollIntoView() //将元素滚动至可见视图中
- elem.style.width
- elem.style
Text类型
hello world var text_node = div.firstChild; var text_node = document.createTextNode(text);
- text_node.nodeValue = text_node.data = ‘hello world’
- text_node.appendData(‘string’);
- text_node.deleteData(offset, count);
- text_node.insertData(offset, text);
- text_node.replaceData(offset, count, new_text);
- text_node.splitText(offset);
- text_node.substringData(offset);
- text_node.length = text_node.data.length = text_node.nodeValue.length;
- text_node.parentNode.normalize() // 将两个子文本节点合并
Comment类型
代码语言:javascript复制<div id='mydiv'><!-- comment --></div> var mydiv = document.getElementById('mydiv'); var comment = mydiv.firstChild; var comment = document.createComment('comment');
- comment类型和Text类型继承自同一个基类,拥有除splitText之外Text的所有属性和方法
Attr类型
elem.attributes中的节点 var attr = document.createAttribute(attr_name);
- attr.nodeType = 11
- attr.nodeName 属性名
- attr.nodeValue 属性值
- attr.parentNode = null
- elem.setAttributeNode(attr);