JavaScript advanced Programming-Read notes (Part I)

Introduction to JavaScript in the first chapter
1.JavaScript composition (Core (ECMAScript), Document Object Model (DOM), Browser object Model (BOM))
2. Document Object Model (DOM), which provides methods and interfaces for accessing and manipulating Web page content
    DOM level
    Dom1-> Mapping Document Structure
    Dom2-> extended mouse, user interface time, range, traversal
        ->dom view, DOM event, Dom style (CSS interface), DOM traversal and scope (Traverse document tree interface)
    Dom3->dom load and save module, DOM validation module
3. Browser object Model (BOM), which provides methods and interfaces for interacting with the browser
    Expand window related, navigator object (browser details), Location object (loading page details),
          Screen object (display resolution details), cookie support,
          ActiveXObject custom objects for XMLHttpRequest and IE

Chapter II using JavaScript in HTML
1. Delay script <script defer= "defer" ></SCRIPT>, browser download Now, deferred execution
2. Asynchronous script <script Async></script> The browser is downloaded immediately, but is not guaranteed to be executed in sequence

JavaScript advanced Programming-Read notes (Part I)