[HTML5] DOM Nodes Explained

复制代码
import './assets/css/style.css';

const app = document.getElementById('app');
app.innerHTML = '<h1>JavaScript DOM</h1>';


// <html>
console.log(document.documentElement);
console.dir(document.documentElement);

// <head>
console.dir(document.head);

// <body>
console.dir(document.body);

// retrieve the constructor name
console.log(document.body.constructor.name);

// looking at the prototype chain
console.log(document.body instanceof HTMLBodyElement);
console.log(document.body instanceof HTMLElement);
console.log(document.body instanceof Element);
console.log(document.body instanceof Node);
console.log(document.body instanceof EventTarget);

/*
  - NodeTypes
  1: Element
  2: Attribute
  3: Text
  4: CDATASection
  5: EntityReference
  6: Entity
  7: ProcessingInstruction
  8: Comment
  9: Document
  10: DocumentType
  11: DocumentFragment
  12: Notation
*/

console.log(document.body.nodeType); // 1
console.log(document.nodeType); // 9

// nodeName for any Node types
console.log(document.nodeName); // #document
// tagName for any Element types
console.log(document.tagName); //undefined
复制代码

 

posted @   Zhentiw  阅读(124)  评论(0编辑  收藏  举报
编辑推荐:
· SQL Server 2025 AI相关能力初探
· Linux系列:如何用 C#调用 C方法造成内存泄露
· AI与.NET技术实操系列(二):开始使用ML.NET
· 记一次.NET内存居高不下排查解决与启示
· 探究高空视频全景AR技术的实现原理
阅读排行:
· 阿里最新开源QwQ-32B,效果媲美deepseek-r1满血版,部署成本又又又降低了!
· Manus重磅发布:全球首款通用AI代理技术深度解析与实战指南
· 开源Multi-agent AI智能体框架aevatar.ai,欢迎大家贡献代码
· 被坑几百块钱后,我竟然真的恢复了删除的微信聊天记录!
· AI技术革命,工作效率10个最佳AI工具
历史上的今天:
2019-03-17 [Algorithm] Search for matching words
2019-03-17 [Algorithm] Trie data structure
2017-03-17 [Angular] USING ZONES IN ANGULAR FOR BETTER PERFORMANCE
2017-03-17 [TypeScript] Using ES6 and ESNext with TypeScript
2016-03-17 [AngularJS] Angular 1.5 multiple transclude
2016-03-17 [RxJS] Creating Observable From Scratch
2015-03-17 [AngularJS] Introduction to angular-formly
点击右上角即可分享
微信分享提示