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This document provides an overview of JavaScript, including: - JavaScript is a client-side scripting language designed for web pages, created by Brendan Eich in 1995. - It can modify HTML content, respond to events, validate forms, and detect browser capabilities. JavaScript code can reside in external files or HTML tags. - Key JavaScript concepts include objects, properties, events, functions, variables, and operators. Objects represent elements like windows and forms. Properties modify objects. Events trigger JavaScript code. Functions perform tasks. Variables store values. Operators manipulate values.
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It includes the basic overview of javascript, its advantages, data types, operators, statements, etc.
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keep visiting for regular updates to this presentation.
This presentation includes the link for Hands On - Windows 8 HTML5 Platform demos
JAVA SCRIPT
This document provides an overview of JavaScript, including what JavaScript is, how it is used, and some key JavaScript concepts. It defines JavaScript as the scripting language of the web that is used to add interactivity and functionality to HTML pages. The document outlines JavaScript statements, variables, operators, events, and error handling. It also discusses how JavaScript can interact with HTML elements, validate forms, detect the browser, and use cookies. The last few sections cover the navigator object and how JavaScript can retrieve information about the user's browser.
J query
jQuery is a JavaScript library that simplifies HTML document traversal, event handling, animating, and Ajax interactions. It was created in 2006 with the goal of writing less code to do more. jQuery simplifies tasks like selecting elements, handling events, performing animations and AJAX calls to make web development faster.
Scripting languages
This document provides an overview of scripting languages, including both client-side and server-side languages. It discusses what scripting languages are and how they differ from other programming languages. Several popular scripting languages are described, including JavaScript, PHP, ASP.NET, and more. JavaScript is discussed in more depth as a commonly used client-side language for adding interactivity to web pages. The document also covers JavaScript syntax like variables, operators, and functions, and how JavaScript interacts with web pages using the Document Object Model (DOM).
Java Script - A New Look
This document provides an overview of JavaScript, including:
- Its origins and development over time
- How it can be used to make webpages dynamic and interactive
- Key JavaScript concepts like variables, arrays, functions, and events
- How it interacts with and manipulates the DOM
- Its rebirth with the introduction of AJAX, which allows asynchronous data fetching and partial page updates
jQuery
This document provides an introduction and overview of jQuery. It discusses how jQuery simplifies DOM navigation and manipulation, handles browser differences, and makes JavaScript coding easier. The document covers basic jQuery concepts like selectors, the jQuery function, attributes, and events. It also provides examples of common jQuery code.
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Presentation
- 2. JavaScript is a programming language designed for Web pages. JavaScript is mainly client-side language and runs in clients software. Javascript was created by Brendan Eich and was first introduced in December 1995.
- 3. Put text in an HTML page on-the-fly. Make your web pages responsive. Create cookies. Validate web form data. Detect visitors' browsers.
- 4. JavaScripts can reside in a separate page. JavaScript can be embedded in HTML documents -- in the <head>, in the <body>, or in both. JavaScript object attributes can be placed in HTML element tags. e.g., <body onLoad="alert('WELCOME')">
- 5. Linking can be advantageous if many pages use the same script. Use the source element to link to the script file. <script type="text/javascript" src="yourjavascript.js"></script>
- 6. When specifying a script only the tags <script> and </script> are essential, but complete specification is recommended: <script type="text/javascript"> </script>
- 7. JavaScript programming uses specialized terminology. Understanding JavaScript terms is fundamental to understanding the script. Objects, Properties, Events, Functions, Variabl es, Operators.
- 8. Objects refers to windows, documents, images, tables, forms, buttons or links, etc. Objects should be named. Objects have properties that act as modifiers.
- 9. Properties are object attributes. Object properties are defined by using the object's name, a period, and the property name. e.g., background color is expressed by: document.bgcolor . document is the object. bgcolor is the property.
- 10. onabort=Occurs when the user cancels loading of an image. onblur=Occurs when input focus is removed from a form element (when the user clicks outside a field) or focus is removed from a window. onclick=Occurs when the user clicks on a link or form element. onchange=Occurs when the value of a form field is changed by the user. onerror=Occurs when an error happens during loading of a document or image. onfocus=Occurs when input focus is given to a form element or a window.
- 11. onload=Occurs when a page is loaded into Navigator. onmouseout=Occurs when the user moves the pointer off of a link or clickable area of an image map. onmouseover=Occurs when the user moves the pointer over a hypertext. onsubmit=Occurs when a form is submitted (i.e., when the user clicks on a submit button). onunload=Occurs when the user leaves a page
- 12. Functions are named statements that performs tasks. e.g., function doWhatever () {statement here} The curly braces contain the statements of the function. JavaScript has built-in functions, and you can write your own.
- 13. Variables contain values and use the equal sign to specify their value. Variables are created by declaration using the var command with or without an initial value state. e.g. var month; e.g. var month = April;
- 14. Operators are used to handle variables. Types of operators with examples: Arithmetic operators, such as plus. Comparisons operators, such as equals. Logical operators, such as and. Assignment and String operators.
- 15. Thank you