etrade dom

About the origin of the DOM BOM concept (Source), Method (methods), content (contents), Application (application)Dom (origin): The File object Model (Documentobjectmodel, referred to as DOM), is a standard programming interface recommended by the Organization for the processing of extensible superscript languages. Documentobjectmodel's history dates back to the

chapter I some basic conceptsHTML (Hyper-text markup language), constructs the static structure of the webpage, consists of a series of Dom;CSS (cascading style sheets), to add style to each part of the page structure;JavaScript, which allows the user to interact with a static web page by acquiring the DOM to add an action to the static structure;DOM, an API (app

the order in which page responses are loaded:1, Domain name analysis, loading html-> loading js and css-> loading pictures and other informationThe DOM detailed steps are as follows: Parses the HTML structure. Load external scripts and style sheet files. Parse and execute the script code. Constructs an HTML DOM model. Load external files such as pictures. The page has finished

Objective:Introduce some native methods provided by the browser you need to use (not dealing with the low-version IE compatibility problem here)The creation process is relatively simple and generally follows: Creating nodes (Common: elements, attributes, and text) Add some properties of a node Adding to the document A little bit of the approach involved in the process: Create element: Document.createelement Setting Properties: SetAttribute Add text: InnerHT

JavaScript can manipulate the entire browser, but this browser object is larger, so for ease of operation, it is divided into three objects.1.BOM objectsBOM Object main operation address bar, browsing history, window height and so on.2.DOM objectsDOM objects primarily manipulate the CSS styles of elements and related elements on a Web page.3.Window objectsThe Window object is the browser's host object and provides methods and properties that are not r

Specific examples:(1) Create a JSP file, introduce CSS and JS files, add three div(2) write ext fileExt.onready (function () {//ext.dom.element//ext.get uses a caching mechanism to improve the efficiency of getting a DOM node Ext.element//get description of the method:/** * 1 First go to the Ext.cache cache to find, if the cache has, directly return to * 2 if the cache is not, then go to the page to find, if not in the page, return NULL * 3 If the pa

Some students will say that you can use the source code search method. Indeed, for a relatively simple page, this method often works. However, for pages that make up a relatively complex page, such as a page that embeds many script files and fragments, uses a large object-oriented implementation, and hides the implementation code, it may not be as smooth as it might look. In JavaScript debugging, we often use breakpoint debugging. In fact, in the debugging of the

Problem Introduction: A DOM element binds two events, one bubbling, one capture, how many times the event executes, and the order of execution. This time do not sell thinking, directly give you an answer. If you don't understand it, keep looking down. the events that bind to the clicked element occur in the order of the Code, the other elements bubble up or capture the "perceived" event, and the event is followed by a bubbling event followed by the s

1. Where is the JavaScript script? 1. When some functions need to be invoked before they are executed or some events need to be triggered to execute, we can place the script in the Head section of the HTML to ensure that the script is loaded before any calls. 2. Scripts that need to be executed when the page is loaded can be placed in the body part of the HTML, which is often used to generate the content of the page. 3. When the page is loaded, the script that needs to be executed immediately

After the $ call for jquery you want to get DOM elements you can use the Getting method, as follows Copy Code code as follows: Mode 1 $ (' div '). Get (1); Get the second div on a page Of course, you can also use array indexing to get Copy Code code as follows: Mode 2 $ (' div ') [1]; Get the second div on a page You can get a particular DOM element in bot