Javascript ch8
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This document discusses getting and updating HTML elements using the DOM. It explains how to get elements by ID or tag name, update the innerHTML property to change text, and how the DOM represents HTML as a tree structure with elements as nodes. It also covers DOM properties like nodeValue and functions like removeChild() and appendChild() to manipulate nodes.
1 of 9
![Get HTML element
getElementByID
getElementByTagName
<body>
<img id=img1 src=/slideshow/javascript-ch8/15221337/img1.png alt=first image/>
<img id=img2 src=img2.png alt=second image/>
<img id=img3 src=img3.png alt=third image/>
</body>
document.getElementById(img1);
document.getElementByTagName(img)[0];](https://image.slidesharecdn.com/javasciptch8-121117071647-phpapp01/85/Javascript-ch8-3-320.jpg)
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I have these files in picture I wrote most the codes but I stuck with somethings.
Please, do not copy and paste from another solution becauce it is incomplete
1- I want the items in GlobalItems file display in the home page with divider between each one.
Homepage.
Note: you can edit on my code but dont create totally different code that does not relate totally
code bc it will be Un useful
if you can also:
Item file
Globalitem file
EdititemPage
mport 'item.dart'; lass Globalitems \{ static final GlobalItems _item = Globalitems._instance();
List < Item> item = Item(1, 'l', 'q'), Item(2,a ', 'd'), Item(3,J ', 'l'), Item(4,g ', 'w'), Item(5,c ', ' n '),
Item(6,l ', 's'), Item(7,q, ' dz '), Item(8,D ', 'Dn'), Item(9,Cr,CF '), Item(10,w,n '), ]; factory
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void initstate() \{ super.initstate(); itemNameController.text = item.name;
itemDescriptioncontroller.text = item.Description; \} .JavaScript DOM & event
JavaScript DOM & eventBorey Lim
油
The document discusses JavaScript and the DOM (Document Object Model). It provides an overview of the DOM, how it is used to represent XML documents in different languages including JavaScript. It also covers navigating the DOM tree, creating and attaching nodes, handling events, and overriding default browser events.DOM Quick Overview
DOM Quick OverviewSignure Technologies
油
The document discusses the Document Object Model (DOM), which defines a standard way to access and manipulate HTML documents as objects in a programming language. The DOM represents an HTML document as nodes organized in a tree structure. The DOM defines objects, properties, and methods to represent the document and access/update its structure and content programmatically. Key points made include:
- The DOM defines a standard object model for HTML and XML documents
- The HTML DOM represents an HTML document as a tree of nodes that can be traversed and manipulated
- DOM nodes for HTML elements have properties like nodeName and nodeValue and methods like getElementById() to access/update the document structure6867389.ppt
6867389.pptSunilChaluvaiah
油
The DOM allows programmers to access and manipulate HTML documents as tree structures. It represents an HTML document as nodes for elements, attributes, and text. This allows adding, removing, and modifying the structure and content of an HTML document dynamically. The DOM is an API for HTML and XML documents that is accessed through JavaScript, CSS, and HTML.6867389.ppt
6867389.pptSunilChaluvaiah
油
The DOM (Document Object Model) allows programmers to access and manipulate HTML documents as trees of nodes. The DOM represents an HTML document as a tree of objects, with nodes containing elements, attributes, and text. This allows JavaScript to add, remove, or change elements and content dynamically. Programmers can select elements and text nodes by their id, tag name, or CSS selector and then modify their properties or content.6867389 (1).ppt
6867389 (1).pptSunilChaluvaiah
油
The DOM allows programmers to access and manipulate HTML documents as tree structures. It represents an HTML document as nodes for elements, attributes, and text. This allows adding, removing, and modifying the structure and content of an HTML document dynamically. The DOM is an API for HTML and XML documents that is accessed through JavaScript, CSS, and HTML.DOM and Events
DOM and EventsJulie Iskander
油
Explains DOM and Events. HTML-Only DOM is explained and Form elements.
Events handling using element properties and event listeners is explained too.
A quick review on Cookies and referrer is briefed tooJavaScript and DOM
JavaScript and DOMJussi Pohjolainen
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The document discusses the Document Object Model (DOM) and how it can be used with JavaScript to dynamically manipulate HTML and XML documents. It provides an overview of the DOM levels defined by the W3C, DOM node types like elements and text, and methods for accessing and modifying the DOM tree like getElementById() and setAttribute(). It also includes examples of how to add, remove and change DOM nodes with JavaScript.Hello world
Hello worldllynn83wou
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This document provides a tutorial for creating a basic "Hello World" JavaScript program. It instructs the reader to:
1. Create an HTML file with script tags in the head to contain the JavaScript code.
2. Define a function called "HelloWorld" that uses an alert box to display the message "Hello World!".
3. Add a link in the body that will call the HelloWorld function when clicked, displaying the alert box.
Opening the saved HTML file in a browser should then show the "Hello World!" message when the link is clicked, completing the first JavaScript program.Basic JS
Basic JSalexisabril
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Part of the JavaScript training series offered by Bitovi. Full course schedule is available here: http://blog.bitovi.com/free-weekly-online-javascript-training/Dom 
Dom Surinder Kaur
油
The DOM (Document Object Model) is a W3C standard that defines a programming interface for XML and HTML documents. The DOM represents an XML document as nodes and objects that can be manipulated programmatically. The DOM defines the logical structure of documents and the way a document is accessed and manipulated. Key points:
- The DOM allows manipulation of the contents of an XML document through a programming interface.
- The DOM represents an XML document as a tree structure, with nodes and objects that can be accessed and manipulated.
- Common DOM node types include elements, attributes, text nodes, comments and documents. The DOM defines interfaces and properties to represent the node relationships and access node contents.JavaScript: Ajax & DOM Manipulation
JavaScript: Ajax & DOM Manipulationborkweb
油
JavaScript workshop for PSU Information Desk employees. Discusses JavaScript, Ajax, DOM Manipulation, jQuery, etc.Javascript dom event
Javascript dom eventBunlong Van
油
This document discusses DOM (Document Object Model) and events in JavaScript. It covers DOM node retrieval, the document tree structure, child, sibling and parent node relationships, DOM manipulation methods like appendChild and innerHTML, event handling and the bubbling and default behaviors of events.Document Object Model
Document Object Modelbaabtra.com - No. 1 supplier of quality freshers
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The document discusses the Document Object Model (DOM), which defines a standard for accessing and manipulating HTML, XML, and SVG documents. It defines the nodes that make up an HTML document as well as the relationships between the nodes. The DOM represents an HTML document as nodes and objects that can be manipulated programmatically. Key points covered include the DOM node tree structure, common node types like elements and attributes, and methods for accessing nodes like getElementById() and getElementsByTagName().lect9
lect9tutorialsruby
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The document discusses JavaScript and the Document Object Model (DOM). It begins with an introduction to JavaScript, including what it is, examples of simple JavaScript code, and how it is used with HTML. It then covers the DOM and how it allows programming access to the structure of web documents. Several JavaScript DOM examples are provided, such as accessing and manipulating DOM elements. Finally, it briefly discusses JavaScript libraries and frameworks like YUI that can be used to add interactivity and dynamic behavior to web pages.lect9
lect9tutorialsruby
油
The document discusses JavaScript and the Document Object Model (DOM). It begins with an introduction to JavaScript, including what it is, examples of basic JavaScript code, and how it is used for client-side scripting. It then covers the DOM and how JavaScript can be used to access and manipulate elements in an HTML document. Finally, it discusses several JavaScript libraries and techniques, including the YUI library and how it can be used for drag-and-drop and animation effects.Javascript jQuery jQuery Ui
Javascript jQuery jQuery UiTom Friedhof
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The document discusses JavaScript, jQuery, and jQuery UI. It covers what JavaScript is and its uses, including client-side scripting, providing instant feedback, and interacting with HTML through the DOM. It then discusses the DOM and how jQuery can make interacting with it easier than vanilla JavaScript. The document provides an example of building tabs with jQuery UI's tabs method. It argues that with libraries like jQuery, you don't need as much expertise in the DOM, JavaScript, and ensuring cross-browser compatibility compared to using them on their own.Javascript ch8
- 1. HFJS Book Review Ch8 Brady Cheng
- 2. Agenda GetHTML Element Update the HTML Element DOM(Document Object Model)
- 3. Get HTML element getElementByID getElementByTagName <body> <img id=img1 src=/slideshow/javascript-ch8/15221337/img1.png alt=first image/> <img id=img2 src=img2.png alt=second image/> <img id=img3 src=img3.png alt=third image/> </body> document.getElementById(img1); document.getElementByTagName(img)[0];
- 4. Update the HTML Element Use innerHTML property to update <head> <script type="text/javascript"> function updateText() { document.getElementById("text").innerHTML = "Hello, JS world!"; } </script> </head> <body> <p id="text" onclick="updateText();"> Hello, world!</p> </body> Output: Hello, world! -> Hello, JS world!
- 5. DOM DOM(document object model) is a concept to organize our html as a tree- like structure document html <head> </head> <body> head body <p id="text"> Hello, world!</p> </body> p Hello, world!
- 6. DOM Every block is a node Upper node is the parent of lower node Two types of node document Element html Text Parent of head/body head body Child of html p Hello, world!
- 7. DOM Some properties to describe nodes nodeValue nodeType document childNode html fisrtChild lastChild head body p Id=textId Hello, world ! alert(document.getElementById("textId").firstChild.nodeValue);
- 8. DOM Some functions to operate nodes removeChild(); createTextNode(); appendChild(); We use DOM to implement the aforementioned updateText() function
- 9. DOM Use innerHTML document.getElementById("text").innerHTML = "Hello, JS world!"; Use DOM while(node.firstChild) node.removeChild(node.firstChild); var new_node = document.createTextNode("Hello, JS world!"); node.appendChild(new_node); Output: Hello, world! -> Hello, JS world!