javascript document queryselector

---restore content starts---The HTML document can be said to be a collection of nodes, the DOM nodes are:1). ELEMENT nodes: 2). Text node: Content that is presented to the user, such as JavaScript, DOM, CSS, and other text in 3). Attribute node: element properties, such as the 1. Node Properties:2. Traverse the node tree:3. Dom Operation:4.Getelementsbyname () method// Syntax document.getelementsbyname (nam

onload () and window.onload and $ (document) in body. the difference between ready (): 1, the first two indicate when the page loaded elements (including pictures and other information) performed after the operation, and both in various browsers are compatible, and $ (document). Ready () represents a method in JQuery and thus only supports JQuery is only applicable in the browser, and the method is ex

JAVASCRIPT gets the IE version number and HTML sets the IE document mode JavaScript gets the IE version code: var gIE = getIE(); alert(gIE.version) function getIE() { var rmsie = /(msie) ([\w.]+)/; var ua = navigator.userAgent.toLowerCase(); var match = rmsie.exec(ua) var result = {}; if (ma

This article illustrates how JavaScript gets the element away from the document's edges. Share to everyone for your reference. The implementation methods are as follows: Copy Code code as follows: function Getdistance (obj) { if (!obj instanceof jQuery) { obj = $ (obj); } var distance = {}; Distance.top = (Obj.offset (). Top-$ (document). ScrollTop ()); Distance.bottom = ($ (window). Height

Javascript| Object | script | detailed ---------------------------------------------------------------------Note: The names of the element name attribute and JavaScript reference on the page must be consistent including caseOr you'll be prompted with an error message "The referenced element is empty or not an object"--------------------------------------------------------------------- Object PropertiesDocum

This article mainly introduces that IE9 + has no document. createElement downward compatible solution. If you need a friend, you can refer to the following today and find that the functions on the pages of IE9 and chrome are different. Therefore, open the console under IE9, I found a bunch of js errors and tracked them with fiddler. The original Code contains the following sentence: if(ie){ var iframe = document.createElement('');} Yes, the proble

Below is the above, after removing the carriage return and adding a javascript in front: generated, open a website with imagesCopy the segment to the address (URL) and press enter to check the effect. It is only valid for . Javascript: dxy = ''; For (cnrose = 0; cnrose (Document. Close ()} else {alert ('no images! ')}

RSS is an xml-based file standard that can be easily shared between Web sites through XML files that conform to the RSS specification. Ajax is the abbreviation for asynchronous JavaScript and XML. Ajax technology allows a request to be made to a server via Hypertext Transfer Protocol (HTTP) and continues processing additional data while waiting for the response. It is easy to read remote XML files through AJAX technology, so you can use AJAX technolog

The example in this article describes the way JavaScript recursively prints the document hierarchy relationship. Share to everyone for your reference. as follows: The wants this article to help you with your JavaScript programming.

The method of output information in JS is as follows: 1. Document Flow output document.write (' Hello '); 2. Output Information Prompt box modal dialog box Window.alert (' to output the displayed content '); or alert (' to output the displayed content '); alert (n); 3, Information confirmation box var f = window.confirm (' Whether to enter Sina net '); Confirm (""); if (f) { location.href = ' http://www.sina.com.cn '

comprehensive attribute. In any browser, all calculation styles are read-only and the CSS attributes in the calculated style objects cannot be modified. In addition, the calculated style also includes the style information of the browser's internal style sheet. For example, the visibility attribute of all browsers has a default value, but this value varies depending on the browser. By default, Some browsers set the value of the visibility attribute to visible, while some browsers set it to inhe

to replace all elements of the currently selected replacement page.For example:$ (function () {$ ("P"). ReplaceWith ("$ ("})ReplaceAll and ReplaceWith () turned upside down.Third, the Parcel node1.wrapall ()This method wraps all matching elements together with one elementFor example:$ ("strong"). Wrapall ("Add B Mark 2.wraplnner ()-the method is to wrap the child content of each matching element (including the text node) with other structured markup. The same as the top.For example:$ ("strong")

The document. selection. createRange () method returns a TextRange object based on the selected text or a ControlRange object based on the selected control.With execCommand, you can perform many tasks in the HTML editor, such as bold text, italic text, copying, pasting, and hyperlink creation.Instance 1:Test content! Example 2:Which old man can solve it? Please help me more !!! Thank you.Which old man can solve it? Please help me more !!! Thank you.Ex

First, get content-text, HTML, Val ()Three simple and practical jQuery methods for DOM manipulation: Text ()-Sets or returns the text content of the selected element HTML ()-Sets or returns the contents of the selected element (including HTML tags) Val ()-Sets or returns the value of a form field The following example shows how to get the content using the JQuery text () and HTML () methods:$ ("#btn1"). Click (function() { alert ("text:" + $ ("#test"). Text ()); $ ("#btn2"

: Triggered on a Windows object when the page is fully loaded, after all frames have been loaded, the specified image is fully loaded after the; tag is triggered on the frameset, and the specified object on which the;12.onmousedown event: Triggers when any mouse button is clicked.13.onmousemove event: Triggers when the mouse moves continuously on an element.14.onmouseout event: Triggered when the mouse is removed from the specified element.15.onmouseover event: Triggers when the mouse moves over

1. The code for two files is as follows:Script>functionAjax () {//To Modify the Ajax () function in 9-4.html$.getscript ('9-8.js',function(data) {varHTML=""; $.each (Comments,function(Index, comment) {HTML+= '' +Comment.username+ ':' +comment['content'] + ''; }) //comment[' username ') can also be written in Comment.username HTML+=""//alert ("Hello");$("#target"). HTML (HTML); });}Script>inputtype= "button"value= "Ajax Commit"onclick= "Ajax ();" />DivID= "Target">Div>2.3. Analysis:Comment

We've talked a lot about JavaScript before, you know, you can click to review:JS operator of JavaScript building;"How JavaScript Works: Memory management + How to handle 4 common memory leaks";JavaScript event of JS Building;Several ways of defining functions in JavaScript;T

As an experienced Web application developer, you may be able to skillfully apply some server-side technology (or a variety of server-side technologies) to build Web applications. We have seen that over the past few years, server-side technology has developed significantly, server-side software development is becoming more and more easy, and more robust, in contrast, the client technology is basically left aside. This situation has been improved by the advent of Ajax technology, as developers now

document content is automatically clearedb) Close the document flow①.docobj.close ()--no parameters, no return value②. The method is automatically executed when the page has finished loading③. When the Write () method is called to dynamically generate a page, the system waits until the close () method is not④. When you add an OnLoad event to a window, the OnLoad event is not triggered when the close () met

JavaScript gets all the pictures of the documentfunction UpdateUI () {var IMGs = document.getelementsbytagname ("img");For (Var i=0, len=imgs.length i Imgs[i].title = Document.title + "image" + i;}var msg = document.getElementById ("msg");msg.innerhtml = "Update complete."} This function may seem completely fine, but it has three reference global document objects. If there is a large number of images on a