dom manipulation javascript tutorial

Dom manipulation of JavaScriptThe basic concept of DOMDom is the Document Object model, which is a tree model; a document refers to a label document; An object is a document; A model refers to something that is abstracted.Windows Object OperationsProperties and MethodsProperty (value or sub-object)Opener: Opens the source window of the current window, or Opener is null if the current window is open for the

1. Selection of DOM elementsSummed up mainly these severalRun effectThe above are all direct lookups, the following are indirect lookupsParentNode //parent node childnodes// All child nodes FirstChild //first child node LastChild //Last child node nextsibling // Next sibling node previoussibling //Previous sibling node these are parentelement //parent node tag elements that contain text childr

: Confirmation Box prompt: prompt Boxbasic Syntax: Data type (string, Decimal, Integer, Boolean, Time)Var,var s = "3.14"; var n = parsefloat (s);; s + = 5;var d = parseint (s);IsNaN (string): A string that determines whether it is a digital shape;-false; not-trueoperators: Four categoriesAn expression:statements: Three major classes (sequential, branching, looping)Branch:if () {}; If...else ...; If...else If...else If ... else;ifNestingcycle: Exhaustive, iterative; four elements (initial condit

HTML DOM (Document Object model)When a Web page is loaded, the browser creates a Document object model for the page.The HTML DOM model is constructed as a tree of objects.Windows Object Operations window.open ()-Open a new window Window.close ()-Close the current window 1.windows.open ("Part I", "second part", "Part Three", "Part IV")The first part: Write page address URLThe second part: _

the text content of the//text node or comment node nodeName //element's label name (such as P,span, #text ( Text node), DIV), denoted in uppercase //note, the above 6 methods even element nodes are counted as one node(2) document as an element tree firstelementchild //First child element node lastelementchild //Last child element node Nextelementsibling //Next sibling element node previouselementsibling //Previous sibling element node childelem

First, document.getElementById () Gets the element node by ID first Apple second Apple function () { var str = document.getElementById ("P1"). InnerHTML; alert (str); // pop up I'm the first Apple }Second, Document.getelementsbyname () Gets the element node according to the name first Apple second Apple function fun1 () { var username = Document.getelementsbyname ("UserName") [0].value;

Tag:javascript object html Dom manipulation of JavaScript

available.Window.settimeoutFour, Operation styleThis element is first found using the ID of the element and stored in a variable:var a = document.getElementById ("id");You can then manipulate the attributes of the element:A.style. style = ""; Manipulate the properties of this ID style.Styles are styles in CSS, and all styles can be manipulated in code.document.body.style.backgroundcolor= "COLOR"; The background color of the entire window.Action style class:a.classname= "style sheet ClassName" A

such as oldchild to save the removed node and, if necessary, to re-add it to the document.4>replacechild ()Replaces another node with one node and returns the node being replaced. Syntax var replacednode = Parentnode.replacechild (NewChild, oldchild);As above, replace Oldchild with Newchild.5>clonenode ()The node calls the method and returns a copy of the node. Syntax var dupnode = Node.clonenode (deep);nodeThe node that will be cloned, dupNode clone the generated replica node, and deep optio

Javascript amp; DHTML instance programming (Tutorial) DOM basics and basic APIs 1. What is DOM? What is DOM? DOM is a Document Object Model (Document Object Model), a set of API Interfaces Based on browser programming (in this

explore further the details of the conversion of the JQuery object to the DOM object.There is a concept in jquery that the 包装集 package set is implemented with a pseudo-array. First look at the definition and traversal of the normal array:var= [‘iceman‘,‘mengzhe‘,‘shoushou‘,‘zhuzhu‘];for (var=0;arr.length; i++{ console.log(arr[i]);}The execution results output four properties in turn, which is the most normal array traversal: Define an array in lit

. in the JAvaScript Loading in XML There are two ways in which a document ① load the same domain XML documentation. ② loads a string representing XML. can take advantage Domapi for XML (in some ways XML is used to store data, which allows the user to customize markup in XML) the operation. DOM serialization of objects becomes XML string. is to speak the XML file content of all parties as a string. this

the same domain XML documentation. ② loads a string representing XML . can use Domapi for XML (in some ways XML is used to store data, allowing users to define their own tags in XML) the operation. DOM serialization of objects becomes XML string. is to say XML the file content of all parties as a string. this is to put a XML The document is exported as a string. The production of XPath technology:because the use getElementById or Get Elementbytagname

1. What is Dom? What is Dom? Dom is a Document Object Model (Document Object Model), a set of API Interfaces Based on browser programming (in this tutorial, it can be said that it is DHTML programming). W3C introduces the Recommendation Standard, each browser has some subtle differences, with Mozilla's browser closest

One, what is DOM? What do you mean Dom,dom is the Document Object model, a set of API interfaces that are based on browser programming (in this tutorial, DHTML programming), the recommended standards for the Web, and each browser has some subtle differences, One of Mozilla's browsers is closest to the standard. Simple

This article ish5eduAgency officialHTML5 Trainingtutorials, the main introduction:JavaScript Intensive TutorialsDOM Programming in the--jqueryDom programming in the JavaScript Hardening tutorial--jquery This article is the official NBSP;HTML5 training tutorial for H5EDU, the main introduction: JavaScript Intensive

HTML Dom tutorial 49-javascript number object In JavaScript, numbers are a basic data type. Javascript supports the number object, which is the packaging object of the original value. When necessary, JavaScript will autom

Article Introduction: JavaScript Instance Tutorial: Dom method to create and modify tables. The If you use the core Dom method to create these elements, you need as much code as: //CREATE table var table = document.createelement ("table"); table.border = 1; table.width = "100%"; Create tbody var tbody =

1 two ways to manipulate styles in the DOM1 through the element's Style propertyNote: when you set the style by using the Style property, the properties of the unit are written in the CSS, and in the JS code , the units are added.// HTML//jsvar box = document.getElementById (' box '= ' 100px '= ' 100px '= ' red '; 2 through the classname attribute of the element// HTML//CSS. show{ width:100px; height:100px: Background-color:red;} // JS var box = document.getElementById (' box '= ' sh

HTML Dom tutorial 50-javascript String object A string is a basic data type of JavaScript. The Length attribute of the string object declares the number of characters in the string. The string class defines a large number of string operations. It should be noted that the j