Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URL's added here will be added as <link>s in order, and before the CSS in the editor. If you link to another Pen, it will include the CSS from that Pen. If the preprocessor matches, it will attempt to combine them before processing.

+ add another resource

JavaScript

Babel is required to process package imports. If you need a different preprocessor remove all packages first.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

+ add another resource

Behavior

Save Automatically?

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

Want to change your Syntax Highlighting theme, Fonts and more?

Visit your global Editor Settings.

HTML

              
                <html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>hash router</title>
</head>
<body>
  <ul>
    <li><a href="#/">/</a></li>
    <li><a href="#/page1">page1</a></li>
    <li><a href="#/page2">page2</a></li>
  </ul>
  <div class='content-div'></div>
</body>
</html>

              
            
!

CSS

              
                
              
            
!

JS

              
                class RouterClass {
  constructor() {
    this.routes = {}        // 记录路径标识符对应的cb
    this.currentUrl = ''    // 记录hash只为方便执行cb
    window.addEventListener('load', () => this.render())
    window.addEventListener('hashchange', () => this.render())
  }
  
  /**
   * 初始化
   */
  static init() {
    window.Router = new RouterClass()
  }
  
  /**
   * 注册路由和回调
   * @param path
   * @param cb 回调
   */
  route(path, cb) {
    this.routes[path] = cb || function() {}
  }
  
  /**
   * 记录当前hash,执行cb
   */
  render() {
    this.currentUrl = location.hash.slice(1) || '/'
    this.routes[this.currentUrl]()
  }
}

RouterClass.init()
const ContentDom = document.querySelector('.content-div')
const changeContent = content => ContentDom.innerHTML = content

Router.route('/', () => changeContent('默认页面'))
Router.route('/page1', () => changeContent('page1页面'))
Router.route('/page2', () => changeContent('page2页面'))

              
            
!
999px

Console