The document discusses the messy and buggy state of the DOM across browsers and strategies for writing cross-browser JavaScript code. It notes that nearly every DOM method has bugs or inconsistencies in some browsers. It then covers strategies like feature detection, graceful fallback for missing features, simulating features via workarounds, monitoring for regressions, and having a robust test suite to prevent regressions in one's own code. The overall message is that the DOM is messy and one needs to "know your enemies" by thoroughly testing code in all target browsers.
The document discusses Asynchronous JavaScript and XML (Ajax) and how it can be used to retrieve data from a server without reloading the entire web page. It provides an overview of Ajax fundamentals including the XMLHttpRequest object, DOM manipulation, and different data transport options. It also recommends using a JavaScript library to simplify making Ajax requests instead of writing raw XMLHttpRequest code.
This document provides an overview of jQuery and Web 2.0 technologies. It discusses how jQuery simplifies tasks like DOM manipulation, event handling, and Ajax. jQuery uses CSS-like selectors to find elements and chaining to perform multiple actions at once. It has a simple API for common tasks and can be extended through plugins. The document also touches on related tools like jQuery UI and jQuery Mobile.
The Inclusive Web: hands-on with HTML5 and jQuerycolinbdclark
Driven by technologies such as HTML5, JavaScript, and jQuery, innovative new user experiences are thriving on the Web. This workshop, presented by Justin Obara and Colin Clark from the Fluid community (http://fluidproject.org), will provide Web designers and developers with an overview of modern Web accessibility techniques, providing hands-on ways to make HTML5 and jQuery-based applications more accessible, flexible, and inclusive of a diverse range of users. We’ll also cover some of the features of Fluid Infusion, an application framework built on top of jQuery.
The document discusses different approaches to using JavaScript libraries, including plug-and-play widgets, libraries that require some coding, and writing raw JavaScript from scratch. It then examines popular open-source JavaScript libraries like Prototype, jQuery, Yahoo UI, and Dojo, comparing their features, functionality, and widgets. The ideal library should have a robust core feature set along with user interface widgets, active development and support, and good documentation.
the 5 layers of web accessibility - Open Web Camp IIDirk Ginader
Dirk Ginader, part of the Yahoo! Accessibility Taskforce, will talk about the “5 Layers of Web Accessibility”. He extents the commonly known 3 layers model consisting of HTML, CSS and JavaScript with 2 new layers for more accessibility. He shows how easy it can be to make a website or web application more accessible by following simple rules.
see:
http://openwebcamp.org/agenda/#5_layers_of_accessibility
Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine. It uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, especially for real-time web applications with many concurrent connections. The document discusses why Node.js uses an asynchronous and non-blocking model, why JavaScript was chosen as the language, and why the V8 engine is fast. It also explains why Node.js is threadless and memory efficient. Finally, it notes that the Node.js community is very active and creative.
Why and when you need end-to-end tests, a spooky story with a 15 years software beast, and how to develop concise, maintainable functional tests using Groovy, Spock and Geb.
This is the Google Tech Talk that I gave August 17th, 2007 on building a JavaScript library. I derived much of the talk from my experiences in building the jQuery and FUEL JavaScript libraries.
Flash over the years, has been used to prop up the regular browser like a sad old man drinking alone in a pub.
Today browsers come shipped with technology designed to rival flash and aim to shut it squarely out of the game.
Are browser ready to rock without Flash?
This document discusses the transition from YUI3 to K2. It provides a brief history of YUI, describing its goals of code reuse through modular components and submodules. It highlights aspects of YUI3 that make it lighter, easier and faster to use than previous versions, including a more consistent API through the Node utility, language enhancements, dynamic loading, and combo handling for faster loading. The document suggests K2 builds upon these strengths.
jQuery Makes Writing JavaScript Fun Again (for HTML5 User Group)Doris Chen
Get frustrated by cross-browser incompatibility? Hate to develop application using JavaScript? jQuery is a powerful JavaScript library that can enhance your websites regardless of your background. jQuery is fast, lean, simple and hugely expandable, enabling you to build compelling web applications quickly and easily. In this session, we will start with a quick introduction of jQuery, illustrate what’s so good about jQuery, and demonstrate step by step how to develop jQuery Ajax application efficiently with database, web services, OData, NetFlix and ASP.NET MVC. Microsoft is now shipping, supporting, and contributing to jQuery, with ASP.NET and Visual Studio. New features which will be available in the next release of jQuery such as globalization, templating and data-linking will be introduced in the session as well.
Performance, Games, and Distributed Testing in JavaScriptjeresig
This document discusses various techniques for measuring and optimizing JavaScript performance, including profiling tools in browsers like Firebug and Safari. It also addresses challenges in building multiplayer JavaScript games, such as latency issues, and proposes solutions like combining elements of strategy, intelligence and accuracy. The document concludes by covering distributed and automated testing techniques like TestSwarm that can help address challenges of testing JavaScript across many browsers and platforms.
JavaScript Library Overview (Ajax Exp West 2007)jeresig
This document summarizes and compares several popular JavaScript libraries: Dojo, Prototype, jQuery, Mootools, and YUI. It outlines the focus, key features, documentation/community support, file size, and popularity for each library. The libraries provide DOM manipulation, event handling, effects/animations, and Ajax capabilities with varying levels of features and complexity. jQuery is highlighted as having a small file size and strong popularity while providing core functionality.
This document discusses optimizing Meetup's performance by reducing page load times. It recommends reducing JavaScript, image, DOM, and CSS files. Specific techniques include externalizing and concatenating JavaScript, lazy loading images and scripts, minimizing DOM elements, writing efficient CSS selectors, and profiling code to optimize loops and DOM manipulation. Reducing page weight through these techniques can improve the user experience by speeding up load times and drop in member activity.
Presentation on how Meetup tackles web performance. Given on:
- Nov 17th, 2009 for the NY Web Performance Group (http://www.meetup.com/Web-Performance-NY/)
- Jan 26th, 2010 for NYC Tech Talks Meetup Group (http://www.meetup.com/NYC-Tech-Talks/)
- The original vision of the World Wide Web was as a hyperlinked document retrieval system, not for presentation, sessions, or interactivity. If it had stayed true to this vision, modern sites like Yahoo would not exist.
- Browser wars in the 1990s led to proprietary technologies that frustrated developers. The introduction of JavaScript in 1995 allowed for dynamic and interactive web pages.
- By the 2000s, Microsoft's Internet Explorer dominated the browser market, bringing some stability through standards like DOM and DHTML. However, cross-browser differences still posed challenges for developers.
This document discusses the history and benefits of Scalable Vector Graphics (SVG) and how SVG rendering has evolved in Ember.js. It explains that SVG was standardized by the W3C in 1998 in response to competing vector formats. Benefits of SVG include small file sizes, arbitrary resolution, and ability to include metadata, links and animation. The document then summarizes the evolution of how Ember renders templates, moving from rendering templates as strings to directly manipulating the DOM with objects like HTMLBars. It discusses challenges of managing namespaces and contexts when rendering templates directly to the DOM.
Advancing JavaScript with Libraries (Yahoo Tech Talk)jeresig
1. JavaScript libraries abstract away browser differences and complex DOM APIs to provide simpler, more consistent interfaces.
2. New library patterns that emerged like DOM selectors and behaviors advanced development by managing cross-browser issues and establishing expectations around DOM manipulation.
3. Libraries build upon one another, with higher-level "meta-libraries" and domain-specific languages creating new programming paradigms on top of existing libraries and APIs.
jQuery is an open source JavaScript library that simplifies HTML and JavaScript interaction. It has a small file size, is fully documented, and supported across many browsers. jQuery allows developers to select elements, perform actions on them such as effects, events, DOM manipulation, and AJAX requests, using its simple and concise syntax.
Open Source Ajax Solution @OSDC.tw 2009Robbie Cheng
This document provides an overview of various open source Ajax solutions including jQuery + DWR, GWT, and ZK. jQuery is a JavaScript library that simplifies DOM manipulation and AJAX requests. DWR allows making remote procedure calls from JavaScript to Java. GWT compiles Java code to JavaScript and supports component-based development. ZK is a server-centric framework that uses XML markup and allows building rich web applications in pure Java without writing JavaScript.
The document provides an agenda and overview for a SharePoint Saturday session on using SharePoint and jQuery. The session will cover the history of SharePoint and jQuery, an overview of jQuery, best practices for when to use jQuery and how to deploy and develop with it. It will also discuss using jQuery to interact with SharePoint forms and lists, and demonstrate some third party jQuery libraries.
The document discusses various security vulnerabilities in Ajax applications including CSRF, login CSRF, JavaScript hijacking, XSS, and history stealing. It provides examples of how these attacks can be carried out and emphasizes the importance of validating and sanitizing user input to prevent scripts from being executed maliciously on a site. The document also recommends techniques for protecting against these attacks, such as using authentication tokens and disabling client-side script evaluation for untrusted sources.
The document discusses the history and evolution of JavaScript libraries for web development. It describes how jQuery has come to dominate the market due to its simplicity and robustness. It outlines Microsoft's initial development of its own Microsoft Ajax library to support ASP.NET developers, but how it later embraced jQuery instead and now includes it with Visual Studio.
Slides I co-presented with John Dyer at the 2010 Echo Conference in Dallas, TX.
http://johndyer.name/
http://echoconference.com/
This document provides an overview of HTML5 and CSS3 concepts for building web applications. It begins with defining what a web app is and its basic anatomy. It then covers new HTML5 structural tags, forms, multimedia capabilities like audio and video, offline data storage, geolocation, and canvas/SVG graphics. For CSS3, it discusses new selectors, the box model, positioning, fonts, visual effects, and media queries. Key topics are presented at a high level with examples to illustrate the main capabilities and uses of HTML5 and CSS3 for mobile web development.
This is the Google Tech Talk that I gave August 17th, 2007 on building a JavaScript library. I derived much of the talk from my experiences in building the jQuery and FUEL JavaScript libraries.
Flash over the years, has been used to prop up the regular browser like a sad old man drinking alone in a pub.
Today browsers come shipped with technology designed to rival flash and aim to shut it squarely out of the game.
Are browser ready to rock without Flash?
This document discusses the transition from YUI3 to K2. It provides a brief history of YUI, describing its goals of code reuse through modular components and submodules. It highlights aspects of YUI3 that make it lighter, easier and faster to use than previous versions, including a more consistent API through the Node utility, language enhancements, dynamic loading, and combo handling for faster loading. The document suggests K2 builds upon these strengths.
jQuery Makes Writing JavaScript Fun Again (for HTML5 User Group)Doris Chen
Get frustrated by cross-browser incompatibility? Hate to develop application using JavaScript? jQuery is a powerful JavaScript library that can enhance your websites regardless of your background. jQuery is fast, lean, simple and hugely expandable, enabling you to build compelling web applications quickly and easily. In this session, we will start with a quick introduction of jQuery, illustrate what’s so good about jQuery, and demonstrate step by step how to develop jQuery Ajax application efficiently with database, web services, OData, NetFlix and ASP.NET MVC. Microsoft is now shipping, supporting, and contributing to jQuery, with ASP.NET and Visual Studio. New features which will be available in the next release of jQuery such as globalization, templating and data-linking will be introduced in the session as well.
Performance, Games, and Distributed Testing in JavaScriptjeresig
This document discusses various techniques for measuring and optimizing JavaScript performance, including profiling tools in browsers like Firebug and Safari. It also addresses challenges in building multiplayer JavaScript games, such as latency issues, and proposes solutions like combining elements of strategy, intelligence and accuracy. The document concludes by covering distributed and automated testing techniques like TestSwarm that can help address challenges of testing JavaScript across many browsers and platforms.
JavaScript Library Overview (Ajax Exp West 2007)jeresig
This document summarizes and compares several popular JavaScript libraries: Dojo, Prototype, jQuery, Mootools, and YUI. It outlines the focus, key features, documentation/community support, file size, and popularity for each library. The libraries provide DOM manipulation, event handling, effects/animations, and Ajax capabilities with varying levels of features and complexity. jQuery is highlighted as having a small file size and strong popularity while providing core functionality.
This document discusses optimizing Meetup's performance by reducing page load times. It recommends reducing JavaScript, image, DOM, and CSS files. Specific techniques include externalizing and concatenating JavaScript, lazy loading images and scripts, minimizing DOM elements, writing efficient CSS selectors, and profiling code to optimize loops and DOM manipulation. Reducing page weight through these techniques can improve the user experience by speeding up load times and drop in member activity.
Presentation on how Meetup tackles web performance. Given on:
- Nov 17th, 2009 for the NY Web Performance Group (http://www.meetup.com/Web-Performance-NY/)
- Jan 26th, 2010 for NYC Tech Talks Meetup Group (http://www.meetup.com/NYC-Tech-Talks/)
- The original vision of the World Wide Web was as a hyperlinked document retrieval system, not for presentation, sessions, or interactivity. If it had stayed true to this vision, modern sites like Yahoo would not exist.
- Browser wars in the 1990s led to proprietary technologies that frustrated developers. The introduction of JavaScript in 1995 allowed for dynamic and interactive web pages.
- By the 2000s, Microsoft's Internet Explorer dominated the browser market, bringing some stability through standards like DOM and DHTML. However, cross-browser differences still posed challenges for developers.
This document discusses the history and benefits of Scalable Vector Graphics (SVG) and how SVG rendering has evolved in Ember.js. It explains that SVG was standardized by the W3C in 1998 in response to competing vector formats. Benefits of SVG include small file sizes, arbitrary resolution, and ability to include metadata, links and animation. The document then summarizes the evolution of how Ember renders templates, moving from rendering templates as strings to directly manipulating the DOM with objects like HTMLBars. It discusses challenges of managing namespaces and contexts when rendering templates directly to the DOM.
Advancing JavaScript with Libraries (Yahoo Tech Talk)jeresig
1. JavaScript libraries abstract away browser differences and complex DOM APIs to provide simpler, more consistent interfaces.
2. New library patterns that emerged like DOM selectors and behaviors advanced development by managing cross-browser issues and establishing expectations around DOM manipulation.
3. Libraries build upon one another, with higher-level "meta-libraries" and domain-specific languages creating new programming paradigms on top of existing libraries and APIs.
jQuery is an open source JavaScript library that simplifies HTML and JavaScript interaction. It has a small file size, is fully documented, and supported across many browsers. jQuery allows developers to select elements, perform actions on them such as effects, events, DOM manipulation, and AJAX requests, using its simple and concise syntax.
Open Source Ajax Solution @OSDC.tw 2009Robbie Cheng
This document provides an overview of various open source Ajax solutions including jQuery + DWR, GWT, and ZK. jQuery is a JavaScript library that simplifies DOM manipulation and AJAX requests. DWR allows making remote procedure calls from JavaScript to Java. GWT compiles Java code to JavaScript and supports component-based development. ZK is a server-centric framework that uses XML markup and allows building rich web applications in pure Java without writing JavaScript.
The document provides an agenda and overview for a SharePoint Saturday session on using SharePoint and jQuery. The session will cover the history of SharePoint and jQuery, an overview of jQuery, best practices for when to use jQuery and how to deploy and develop with it. It will also discuss using jQuery to interact with SharePoint forms and lists, and demonstrate some third party jQuery libraries.
The document discusses various security vulnerabilities in Ajax applications including CSRF, login CSRF, JavaScript hijacking, XSS, and history stealing. It provides examples of how these attacks can be carried out and emphasizes the importance of validating and sanitizing user input to prevent scripts from being executed maliciously on a site. The document also recommends techniques for protecting against these attacks, such as using authentication tokens and disabling client-side script evaluation for untrusted sources.
The document discusses the history and evolution of JavaScript libraries for web development. It describes how jQuery has come to dominate the market due to its simplicity and robustness. It outlines Microsoft's initial development of its own Microsoft Ajax library to support ASP.NET developers, but how it later embraced jQuery instead and now includes it with Visual Studio.
Slides I co-presented with John Dyer at the 2010 Echo Conference in Dallas, TX.
http://johndyer.name/
http://echoconference.com/
This document provides an overview of HTML5 and CSS3 concepts for building web applications. It begins with defining what a web app is and its basic anatomy. It then covers new HTML5 structural tags, forms, multimedia capabilities like audio and video, offline data storage, geolocation, and canvas/SVG graphics. For CSS3, it discusses new selectors, the box model, positioning, fonts, visual effects, and media queries. Key topics are presented at a high level with examples to illustrate the main capabilities and uses of HTML5 and CSS3 for mobile web development.
This document summarizes the steps taken to optimize the performance of a website for reviewing parliamentary expenses. Initially, querying for unreviewed pages was causing high CPU usage on the database server. To address this, the count of unreviewed pages was cached in Memcached, reducing CPU usage. Other optimizations included migrating the database to InnoDB, adding a "next" button that redirects to a random unreviewed page, and caching the list of unreviewed page IDs in Memcached for faster random access. During a future scale issue, Redis will be used instead of Memcached. Putting the site in read-only mode also helped during a period of high load.
This presentation covers some jQuery basics, as well as some general concepts you should understand about jQuery. You will find other tips and tricks sprinkled throughout before the live coding session starts.
The code from the live coding session is available here: https://github.com/dcneiner/jQuery-Bling and covers far more advanced topics than the slide portion of this presentation.
It tells about linkedin features, architecture ,network, os, linkedin company features, linkedin tools, linkedin events,blogs, jobs search,people search,company search,giving ads ,posting news articles,
how to get recommendations,how to get business advices and linkedin groups
The document discusses the evolution of HTML over time. It notes that XHTML proposals broke backwards compatibility and saw slow adoption. Meanwhile, browsers and technologies like Ajax advanced independently of standards bodies. This led to the formation of the WHATWG to further develop HTML. HTML 5 is described as just a nickname for ongoing incremental HTML revisions, combining the work of the WHATWG and W3C, allowing both XML and classic HTML syntaxes.
This document summarizes Simon Willison's presentation on building the social web with OpenID. It discusses four problems with traditional usernames and passwords: they are insecure, creating new accounts is tedious, online identities are fragmented, and social software has too much overhead. OpenID is presented as a decentralized solution for single sign-on that allows users to authenticate using a URL as their identity. The document covers how OpenID works, considerations for implementing it, and its potential to help tie together a user's online profiles and identities across different services.
This document summarizes Simon Willison's talk on web app security vulnerabilities and lessons learned from past mistakes. It discusses cross-site scripting (XSS) vulnerabilities that allow attackers to steal users' cookies or show fake login pages. It also covers SQL injection attacks, cross-site request forgery (CSRF), and how even features like CSS can be exploited. Past incidents like Samy's MySpace worm and the Google UTF-7 hole are examined to illustrate the dangers if vulnerabilities are left unaddressed. The talk emphasizes following best practices like parameterization and CSRF tokens to prevent common exploits.
Rediscovering JavaScript: The Language Behind The LibrariesSimon Willison
This document provides a summary of the evolution of JavaScript libraries from 2004 to 2005. It discusses how in 2004, JavaScript was not taken seriously by most developers. A few libraries like Prototype.js emerged in 2005, helping popularize JavaScript for dynamic effects like drag and drop. This led to a flurry of library development in 2005, including early versions of jQuery, MochiKit and YUI. These libraries had different philosophies but helped unlock JavaScript's potential and make it a first-class language for web development.
This document provides an overview of popular JavaScript libraries including Dojo Toolkit, YUI, Prototype, and jQuery. It discusses problems they aim to solve like cross-browser inconsistencies. Key features of each library are mentioned like Dojo's widgets, YUI's controls, Prototype's Ruby-like syntax, and jQuery's chaining and node selection. The document also covers ideas from the libraries like progressive enhancement, animation APIs, and leveraging hosting on CDNs.
This document provides an overview of jQuery, including:
- What jQuery is and its main advantages like simplifying JavaScript programming
- How to enable jQuery and the basic jQuery syntax
- The differences between JavaScript and jQuery
- Common jQuery selectors, events, and effects like show(), hide(), fadeIn(), etc.
It covers the main concepts in jQuery like selecting elements, events, and animations at a high level in order to introduce the reader to what jQuery is and its basic functionality.
When Ajax Attacks! Web application security fundamentalsSimon Willison
The document is a presentation about web application security fundamentals and attacks. It discusses topics like cross-site scripting (XSS), cross-site request forgery (CSRF), UTF-7 encoding, and other techniques like JSON parsing (JSONP). In the past, security tutorials focused on not trusting user input, avoiding SQL injection, and preventing JavaScript injection, but the presenter aims to discuss more modern attacks.
El documento describe el Modelo de Objetos de Documento (DOM), que es una interfaz para programas y scripts para acceder y modificar el contenido, estructura y estilo de documentos XML y HTML. El DOM define una representación del documento como un árbol de nodos y objetos, permitiendo la navegación y modificación de la estructura del documento. El DOM ha evolucionado a través de varios niveles para agregar funcionalidades como manipulación de contenido, hojas de estilo, eventos y rangos.
This document discusses the features of an event discovery and recommendation website. It uses MapBox maps, suggests events based on contacts and interests, and shows event details pages. Users can track topics by location and the site has a hierarchical place database. It provides rich snippets, GeoRSS feeds, and supports search within areas by indexing the place hierarchy. Events have primary venues to plot on maps and the site integrates with Foursquare.
Simon Willison discusses the benefits of decentralized social networks and open authentication standards like OpenID. OpenID allows users to log into multiple websites using a single digital identity and their chosen identity provider, rather than having separate usernames and passwords for each site. It works by the website requesting identity assertions from the user's OpenID provider which are signed statements about the user's identity.
The document summarizes key aspects of using JavaScript with the DOM:
1) The DOM represents the document as nodes that can be accessed and manipulated with JavaScript. Common methods are getElementById() and getElementsByTagName() to select nodes, and createElement() to generate new nodes.
2) Events allow JavaScript to react to user actions. Event handlers can be assigned to nodes using onclick attributes or addEventListener(). Events bubble up the DOM tree by default but can be stopped from propagating with stopPropagation().
3) The this keyword refers to the "owner" or context of the executing function, such as the HTML element to which an event handler is assigned. Understanding this is important for manipulating nodes from
The Document Object Model (DOM) is a standard for representing and interacting with objects in HTML, XML and SVG documents. It defines the logical structure of documents and the way a document is accessed and manipulated. The DOM represents the document as nodes and objects, which can be manipulated programmatically by JavaScript to change the document structure, style and content. It allows dynamic access to and manipulation of page content that is useful for building interactive web applications. The DOM specification is developed by the W3C and provides a platform- and language-neutral interface that can be used across different web technologies.
This document discusses an introduction to browser internals presented at Barcamp Bangalore 2014. It covers how browsers work behind the scenes including parsing HTML, constructing the DOM tree, applying CSS styles, executing JavaScript, laying out pages, and more. The rise of Chrome and fall of Internet Explorer market share is shown. Hands-on demonstrations are provided of manipulating the DOM in real-time to see how browsers operate. Resources for learning more about browser engines like WebKit and building your own browser are also listed.
This document provides an introduction to the browser DOM (Document Object Model). It discusses the history and components of browsers, including layout engines like WebKit, Gecko, and Trident. It explains that the DOM represents the document as objects that can be accessed and manipulated with JavaScript. Code examples are provided to demonstrate accessing and manipulating DOM objects to change HTML elements on a page.
The document provides an introduction to simplifying AJAX using jQuery. It discusses using jQuery to make GET and POST requests, load scripts and JSON data, handle errors, and set global AJAX options. Examples are given to demonstrate loading data from URLs into HTML elements, passing data parameters, and handling success/failure responses. References for further reading on AJAX caching and best practices are also included.
The document discusses various JavaScript libraries including Prototype, jQuery, Yahoo UI, and Dojo. It compares the libraries across categories like core functionality, widgets, architecture, licensing, browser support, development, and documentation. The core functionality discussed includes DOM manipulation, events, AJAX, and animations. Popular widgets provided by the libraries include drag and drop, trees, grids, modal dialogs, tabbed panes, menus/toolbars, datepickers and sliders. The document also covers considerations for the libraries like licensing, browser support, ongoing development, and quality of documentation and tutorials.
The document discusses various JavaScript libraries including Prototype, jQuery, Yahoo UI, and Dojo. It compares the core functionality, widgets, development practices, and other features of each library. The core functionality discussed includes DOM manipulation, events, Ajax, and animations. Widgets/components discussed include drag and drop, trees, grids, modal dialogs, tabbed panes, menus/toolbars, datepickers, and sliders. Other sections cover architecture, licensing, browser support, file size, development practices like version control and testing, and documentation.
jQuery Presentation to Rails DevelopersYehuda Katz
This document summarizes jQuery, an open-source JavaScript library that simplifies HTML and JavaScript interactions. It discusses jQuery's features like DOM manipulation, events, effects, and AJAX capabilities. It also covers how to use jQuery with Ruby on Rails, including responding to Ajax requests and placing JavaScript code. The document advocates separating JavaScript behavior from HTML/CSS for maintainability.
Jazz up your JavaScript: Unobtrusive scripting with JavaScript librariesSimon Willison
This document discusses using JavaScript libraries to write unobtrusive scripts. It begins with a brief history of JavaScript development and introduces concepts like unobtrusive scripting and progressive enhancement. It then provides examples of basic unobtrusive scripts and discusses challenges like cross-browser event handling. The bulk of the document focuses on JavaScript libraries and their benefits, listing common library features and some of the most popular libraries like jQuery. It concludes with a specific example using Yahoo's YUI library to add AJAX functionality to a login form.
The document discusses JavaScript libraries and compares several popular options. It covers the core functionality that libraries should provide, including DOM manipulation, events, AJAX, and animations. It also discusses user interface widgets and components commonly included in libraries. Popular open source libraries like Prototype, jQuery, Yahoo UI, Dojo, and Mootools are described and compared in terms of their features, architecture, community, and other qualities. The document provides an overview to help developers choose a JavaScript library.
qooxdoo is an open-source AJAX framework for building cross-browser web applications. It provides a comprehensive GUI toolkit and tools to build desktop-like rich internet applications. The framework uses object-oriented JavaScript and a build process to package applications for deployment. It aims to support developers through features like debugging, internationalization and IDE integration. The project is open source and maintained by a team of full-time developers.
jQuery is an open source JavaScript library that simplifies HTML and JavaScript interaction. It uses CSS to layer functionality and has a quick, terse syntax. jQuery selects elements and allows something to be done with them, like adding a class. It has a large plugin ecosystem managed through a plugin tracker. jQuery UI provides cross-browser user interface components. The library is fully documented, has a great community, many plugins, and small size. It works in all major browsers and is used by many large companies and projects.
- The document is a presentation on Ajax given by Alex Russell that covers what Ajax is, how it works, when it should and should not be used, tools for Ajax development, debugging techniques, and the future of Ajax and the open web.
- It includes examples of building an auto-save feature with Ajax using plain JavaScript, Prototype, and Dojo and discusses language features of JavaScript.
- The presentation aims to provide enough knowledge and code examples to get started with Ajax development while addressing open web standards and browser compatibility.
jQuery is a JavaScript library that simplifies HTML and JavaScript interaction. It allows developers to select elements, perform actions on them such as adding/removing classes or triggering events, and chaining multiple actions together. jQuery supports CSS selectors, DOM manipulation, event handling, effects/animations, and AJAX operations. It is widely used by major websites for interactive prototypes and applications due to its small size, extensive documentation, plugins, and cross-browser compatibility.
The document discusses JavaScript and the Spry framework in Adobe Dreamweaver CS4. It provides an overview of JavaScript development, how Dreamweaver is helping with tools like code hinting, debugging and live preview. It then focuses on explaining the Spry framework, how it provides widgets, effects, datasets and integration with Dreamweaver.
This document summarizes a presentation about jQuery, JavaScript, and how jQuery simplifies HTML document manipulation. It defines jQuery as an open-source JavaScript library that simplifies tasks like traversing, handling events, animating, and making AJAX calls. It also discusses what JavaScript is, how jQuery can be used with other libraries, examples of companies that use jQuery, and provides contact information for getting more information about jQuery.
A talk that I gave Sept 2008 for the Boston IxDA on jQuery.
Code is here: http://ejohn.org/apps/learn-jquery/
Download here: http://ejohn.org/files/learn-jquery.zip
The curious Life of JavaScript - Talk at SI-SE 2015jbandi
My talk about the life of JavaScript, from birth to today.
I went trough the demos and code examples very quickly, rather as a teaser to show how modern JavaScript development might look.
If you are interested in a deep dive into the topic of modern JavaScript development, HTML5, ES6, AngularJS, React, Gulp, Grunt etc, please consider my courses: http://www.ivorycode.com/#schulung
Moving to the Client - JavaFX and HTML5Stephen Chin
Stephen Chin presented on moving applications to the client using JavaFX and HTML5. He provided a history of HTML and discussed key HTML5 features like Canvas, offline storage, and WebSockets. He demonstrated displaying HTML in JavaFX using the WebView control and calling JavaScript from JavaFX. Chin also showed responsive design techniques and discussed using JavaScript frameworks like jQuery for cross-browser compatibility. Finally, he highlighted Oracle Cloud Platform services for running databases and Java applications in the cloud.
Phobos is a lightweight JavaScript web application framework that allows all application logic to be written in JavaScript. It runs on the Java platform and supports full-featured IDE development. Phobos integrates JavaScript and Java libraries and allows JavaScript code to be run across client, server, and database tiers for a unified programming model.
This document provides an overview of Node.js including:
- What Node.js is and its event-driven, non-blocking architecture
- How to install Node.js and build applications
- How to use modules like Express.js and Socket.io
- Examples of deploying Node.js applications to Microsoft Azure
- A demonstration of building a collaborative drum machine app with Node.js, WebSockets, and the Web Audio API
This document discusses cheap tricks for startups to experiment and deploy features quickly. It recommends using feature flags to control features for different users, deploying to staging environments first, and using read-only mode for low-risk deployments. It also suggests adding created/updated date fields to all tables to easily track site growth over time, and storing daily report calculations in the database to graph metrics over time. The overall message is that these techniques allow for easy, fast, and cheap experimentation, deployment, and analytics.
The Django Web Framework (EuroPython 2006)Simon Willison
The document summarizes the Django web framework. It describes key characteristics like clean URLs, loosely coupled components, and designer-friendly templates. It outlines components like URL dispatching, views, models, templates, forms, validation, administration, internationalization, and success stories. Django allows for really fast development, reuse of components, and less code through its architecture and features.
Lanyrd.com is a definitive database of professional events and speakers that provides social event recommendation and comprehensive speaker profiles. It features a social event recommendation engine, comprehensive speaker profiles that include archives of slides, notes and videos, and a definitive database of professional events and speakers.
How we bootstrapped Lanyrd using Twitter's social graphSimon Willison
This document describes how Lanyrd.com bootstrapped their social event and speaker database site by leveraging Twitter's social graph and APIs. They were able to quickly build profiles for 500 speakers before launching by accessing public Twitter account information. Using Twitter follower data stored in Redis and speaker information indexed by Solr, Lanyrd can provide personalized event recommendations to users. While relying on Twitter introduced some risks, it was an effective way to initially populate the site with user and event data.
Web services and APIs allow large websites like Yahoo to be built and maintained, enable internal innovation through mashups, and allow external developers to build new products and services using publicly available data and functionality. They help address issues like security, scaling, and making changes by separating concerns between interfaces and implementations. Events like d.Construct promote discussion and innovation around emerging technologies like Ajax, APIs, and mobile applications.
Tricks & challenges developing a large Django applicationSimon Willison
The document discusses tricks and challenges for developing large Django applications. It outlines three tricks: 1) Signing data to pass through untrusted sources without tampering; 2) Adding a cache version field to models to invalidate cached queries; 3) Using NoSQL databases like Redis and Solr for denormalizing data to allow flexible queries across entities. Redis sets are used to track relationships like followers and event attendees for recommendations.
Advanced Aspects of the Django Ecosystem: Haystack, Celery & FabricSimon Willison
This document summarizes Haystack, Celery, and Fabric - three tools that are part of the Django ecosystem. Haystack allows for full-text search, Celery handles asynchronous/background tasks, and Fabric automates deployment tasks. The document provides high-level descriptions of each tool's functionality and advantages. It also includes links to documentation and getting started guides.
Lanyrd.com is a website that provides a definitive database of professional events and speakers, enables social recommendations of events, and includes comprehensive speaker profiles with archived materials like slides and videos. It utilizes crowdsourcing and shared contributions from users (a wiki-style model). The site integrates heavily with Twitter to discover event discussions, promote speaker profiles, and provide recommendation features based on a user's Twitter follows. It aims to make professional conferences and networking more effective.
Building Things Fast - and getting approvalSimon Willison
The document summarizes Simon Willison's talk at An Event Apart Chicago 2009 about building things fast using modern web development techniques and tools. The talk discusses trends in rapid interactive development using client-side JavaScript, web frameworks that facilitate quick prototyping and deployment, and building a Twitter client in under 50 lines of JavaScript code to demonstrate these techniques.
A talk on my experiences building crowdsourcing applications, both at the Guardian newspaper and for my own personal projects. Presented at Web Directions @media 2010 on June 9th.
Keynote for DjangoCon 2009, presented on the 8th of September 2009. Covers two cowboy projects - WildLifeNearYou.com and MP expenses - and talks about ways of "reigning in the cowboy" and developing in a more sustainable way.
Crowdsourcing involves building a website to allow users to review and annotate MP expense documents. The site was built quickly using Django within a week. It uses models to represent MPs, expenses documents, pages, and user annotations. Unreviewed pages were cached to improve performance when getting a random next page. As usage increased, the database was migrated and caching was added. Over 70,000 pages were reviewed, showing how crowdsourcing can be used for document review at scale.
This document contains Simon Willison's heresies about Django. Some of the heresies discussed include that the {% if %} tags in Django templates suck, that silencing template errors is a bad idea, and that settings.py causes problems. Alternatives proposed include using a smarter {% if %} tag snippet, not silencing errors, and allowing per-application settings instead of one global settings file. The document also advocates for improving testing and documentation in the Django community.
This document discusses class-based views in Django. It covers Django's emphasis on reusability through generic views and a thriving ecosystem of third-party applications. Generic views encapsulate common patterns like listing and editing objects. While powerful, generic views have some limitations like an inability to swap the ORM. The document also discusses making the admin interface more customizable and decoupled from Django through subclassing, as well as implementing fine-grained permissions by overriding methods in ModelAdmin subclasses. Finally, it suggests that any component that follows the request-response pattern could be implemented as a class, including decorators.
Keeping your web application secure is an ongoing process - new classes of vulnerabilities are discovered with surprising frequency, and if you don't keep on top of them you could be in for a nasty surprise. This talk will discuss both common and obscure vulnerabilities, with real-world examples of attacks that have worked against high profile sites in the past.
This document discusses an organization that loves zeppelins and is seeking sponsorship opportunities and technicians. It mentions sponsorship opportunities that provide branding and hospitality in the Bay Area market. It also lists an open position for an airframe and powerplant technician.
Simon Willison gave a presentation on Comet, a technique for enabling live data updates in web applications. Comet allows a web server to push events to connected browsers in real-time. It has faced many technical challenges due to browser limitations. Key techniques discussed include streaming, long polling, and the Bayeaux protocol which provides a common way for Comet clients and servers to communicate. The presentation showed how to easily build a basic Comet application using Jetty and Dojo in just a few lines of code.
Technology Trends in 2025: AI and Big Data AnalyticsInData Labs
At InData Labs, we have been keeping an ear to the ground, looking out for AI-enabled digital transformation trends coming our way in 2025. Our report will provide a look into the technology landscape of the future, including:
-Artificial Intelligence Market Overview
-Strategies for AI Adoption in 2025
-Anticipated drivers of AI adoption and transformative technologies
-Benefits of AI and Big data for your business
-Tips on how to prepare your business for innovation
-AI and data privacy: Strategies for securing data privacy in AI models, etc.
Download your free copy nowand implement the key findings to improve your business.
How Can I use the AI Hype in my Business Context?Daniel Lehner
𝙄𝙨 𝘼𝙄 𝙟𝙪𝙨𝙩 𝙝𝙮𝙥𝙚? 𝙊𝙧 𝙞𝙨 𝙞𝙩 𝙩𝙝𝙚 𝙜𝙖𝙢𝙚 𝙘𝙝𝙖𝙣𝙜𝙚𝙧 𝙮𝙤𝙪𝙧 𝙗𝙪𝙨𝙞𝙣𝙚𝙨𝙨 𝙣𝙚𝙚𝙙𝙨?
Everyone’s talking about AI but is anyone really using it to create real value?
Most companies want to leverage AI. Few know 𝗵𝗼𝘄.
✅ What exactly should you ask to find real AI opportunities?
✅ Which AI techniques actually fit your business?
✅ Is your data even ready for AI?
If you’re not sure, you’re not alone. This is a condensed version of the slides I presented at a Linkedin webinar for Tecnovy on 28.04.2025.
HCL Nomad Web – Best Practices und Verwaltung von Multiuser-Umgebungenpanagenda
Webinar Recording: https://www.panagenda.com/webinars/hcl-nomad-web-best-practices-und-verwaltung-von-multiuser-umgebungen/
HCL Nomad Web wird als die nächste Generation des HCL Notes-Clients gefeiert und bietet zahlreiche Vorteile, wie die Beseitigung des Bedarfs an Paketierung, Verteilung und Installation. Nomad Web-Client-Updates werden “automatisch” im Hintergrund installiert, was den administrativen Aufwand im Vergleich zu traditionellen HCL Notes-Clients erheblich reduziert. Allerdings stellt die Fehlerbehebung in Nomad Web im Vergleich zum Notes-Client einzigartige Herausforderungen dar.
Begleiten Sie Christoph und Marc, während sie demonstrieren, wie der Fehlerbehebungsprozess in HCL Nomad Web vereinfacht werden kann, um eine reibungslose und effiziente Benutzererfahrung zu gewährleisten.
In diesem Webinar werden wir effektive Strategien zur Diagnose und Lösung häufiger Probleme in HCL Nomad Web untersuchen, einschließlich
- Zugriff auf die Konsole
- Auffinden und Interpretieren von Protokolldateien
- Zugriff auf den Datenordner im Cache des Browsers (unter Verwendung von OPFS)
- Verständnis der Unterschiede zwischen Einzel- und Mehrbenutzerszenarien
- Nutzung der Client Clocking-Funktion
Complete Guide to Advanced Logistics Management Software in Riyadh.pdfSoftware Company
Explore the benefits and features of advanced logistics management software for businesses in Riyadh. This guide delves into the latest technologies, from real-time tracking and route optimization to warehouse management and inventory control, helping businesses streamline their logistics operations and reduce costs. Learn how implementing the right software solution can enhance efficiency, improve customer satisfaction, and provide a competitive edge in the growing logistics sector of Riyadh.
Semantic Cultivators : The Critical Future Role to Enable AIartmondano
By 2026, AI agents will consume 10x more enterprise data than humans, but with none of the contextual understanding that prevents catastrophic misinterpretations.
Linux Support for SMARC: How Toradex Empowers Embedded DevelopersToradex
Toradex brings robust Linux support to SMARC (Smart Mobility Architecture), ensuring high performance and long-term reliability for embedded applications. Here’s how:
• Optimized Torizon OS & Yocto Support – Toradex provides Torizon OS, a Debian-based easy-to-use platform, and Yocto BSPs for customized Linux images on SMARC modules.
• Seamless Integration with i.MX 8M Plus and i.MX 95 – Toradex SMARC solutions leverage NXP’s i.MX 8 M Plus and i.MX 95 SoCs, delivering power efficiency and AI-ready performance.
• Secure and Reliable – With Secure Boot, over-the-air (OTA) updates, and LTS kernel support, Toradex ensures industrial-grade security and longevity.
• Containerized Workflows for AI & IoT – Support for Docker, ROS, and real-time Linux enables scalable AI, ML, and IoT applications.
• Strong Ecosystem & Developer Support – Toradex offers comprehensive documentation, developer tools, and dedicated support, accelerating time-to-market.
With Toradex’s Linux support for SMARC, developers get a scalable, secure, and high-performance solution for industrial, medical, and AI-driven applications.
Do you have a specific project or application in mind where you're considering SMARC? We can help with Free Compatibility Check and help you with quick time-to-market
For more information: https://www.toradex.com/computer-on-modules/smarc-arm-family
TrsLabs - Fintech Product & Business ConsultingTrs Labs
Hybrid Growth Mandate Model with TrsLabs
Strategic Investments, Inorganic Growth, Business Model Pivoting are critical activities that business don't do/change everyday. In cases like this, it may benefit your business to choose a temporary external consultant.
An unbiased plan driven by clearcut deliverables, market dynamics and without the influence of your internal office equations empower business leaders to make right choices.
Getting things done within a budget within a timeframe is key to Growing Business - No matter whether you are a start-up or a big company
Talk to us & Unlock the competitive advantage
Special Meetup Edition - TDX Bengaluru Meetup #52.pptxshyamraj55
We’re bringing the TDX energy to our community with 2 power-packed sessions:
🛠️ Workshop: MuleSoft for Agentforce
Explore the new version of our hands-on workshop featuring the latest Topic Center and API Catalog updates.
📄 Talk: Power Up Document Processing
Dive into smart automation with MuleSoft IDP, NLP, and Einstein AI for intelligent document workflows.
AI EngineHost Review: Revolutionary USA Datacenter-Based Hosting with NVIDIA ...SOFTTECHHUB
I started my online journey with several hosting services before stumbling upon Ai EngineHost. At first, the idea of paying one fee and getting lifetime access seemed too good to pass up. The platform is built on reliable US-based servers, ensuring your projects run at high speeds and remain safe. Let me take you step by step through its benefits and features as I explain why this hosting solution is a perfect fit for digital entrepreneurs.
Book industry standards are evolving rapidly. In the first part of this session, we’ll share an overview of key developments from 2024 and the early months of 2025. Then, BookNet’s resident standards expert, Tom Richardson, and CEO, Lauren Stewart, have a forward-looking conversation about what’s next.
Link to recording, presentation slides, and accompanying resource: https://bnctechforum.ca/sessions/standardsgoals-for-2025-standards-certification-roundup/
Presented by BookNet Canada on May 6, 2025 with support from the Department of Canadian Heritage.
Artificial Intelligence is providing benefits in many areas of work within the heritage sector, from image analysis, to ideas generation, and new research tools. However, it is more critical than ever for people, with analogue intelligence, to ensure the integrity and ethical use of AI. Including real people can improve the use of AI by identifying potential biases, cross-checking results, refining workflows, and providing contextual relevance to AI-driven results.
News about the impact of AI often paints a rosy picture. In practice, there are many potential pitfalls. This presentation discusses these issues and looks at the role of analogue intelligence and analogue interfaces in providing the best results to our audiences. How do we deal with factually incorrect results? How do we get content generated that better reflects the diversity of our communities? What roles are there for physical, in-person experiences in the digital world?
Quantum Computing Quick Research Guide by Arthur MorganArthur Morgan
This is a Quick Research Guide (QRG).
QRGs include the following:
- A brief, high-level overview of the QRG topic.
- A milestone timeline for the QRG topic.
- Links to various free online resource materials to provide a deeper dive into the QRG topic.
- Conclusion and a recommendation for at least two books available in the SJPL system on the QRG topic.
QRGs planned for the series:
- Artificial Intelligence QRG
- Quantum Computing QRG
- Big Data Analytics QRG
- Spacecraft Guidance, Navigation & Control QRG (coming 2026)
- UK Home Computing & The Birth of ARM QRG (coming 2027)
Any questions or comments?
- Please contact Arthur Morgan at [email protected].
100% human made.
AI Changes Everything – Talk at Cardiff Metropolitan University, 29th April 2...Alan Dix
Talk at the final event of Data Fusion Dynamics: A Collaborative UK-Saudi Initiative in Cybersecurity and Artificial Intelligence funded by the British Council UK-Saudi Challenge Fund 2024, Cardiff Metropolitan University, 29th April 2025
https://alandix.com/academic/talks/CMet2025-AI-Changes-Everything/
Is AI just another technology, or does it fundamentally change the way we live and think?
Every technology has a direct impact with micro-ethical consequences, some good, some bad. However more profound are the ways in which some technologies reshape the very fabric of society with macro-ethical impacts. The invention of the stirrup revolutionised mounted combat, but as a side effect gave rise to the feudal system, which still shapes politics today. The internal combustion engine offers personal freedom and creates pollution, but has also transformed the nature of urban planning and international trade. When we look at AI the micro-ethical issues, such as bias, are most obvious, but the macro-ethical challenges may be greater.
At a micro-ethical level AI has the potential to deepen social, ethnic and gender bias, issues I have warned about since the early 1990s! It is also being used increasingly on the battlefield. However, it also offers amazing opportunities in health and educations, as the recent Nobel prizes for the developers of AlphaFold illustrate. More radically, the need to encode ethics acts as a mirror to surface essential ethical problems and conflicts.
At the macro-ethical level, by the early 2000s digital technology had already begun to undermine sovereignty (e.g. gambling), market economics (through network effects and emergent monopolies), and the very meaning of money. Modern AI is the child of big data, big computation and ultimately big business, intensifying the inherent tendency of digital technology to concentrate power. AI is already unravelling the fundamentals of the social, political and economic world around us, but this is a world that needs radical reimagining to overcome the global environmental and human challenges that confront us. Our challenge is whether to let the threads fall as they may, or to use them to weave a better future.
Massive Power Outage Hits Spain, Portugal, and France: Causes, Impact, and On...Aqusag Technologies
In late April 2025, a significant portion of Europe, particularly Spain, Portugal, and parts of southern France, experienced widespread, rolling power outages that continue to affect millions of residents, businesses, and infrastructure systems.
Mobile App Development Company in Saudi ArabiaSteve Jonas
EmizenTech is a globally recognized software development company, proudly serving businesses since 2013. With over 11+ years of industry experience and a team of 200+ skilled professionals, we have successfully delivered 1200+ projects across various sectors. As a leading Mobile App Development Company In Saudi Arabia we offer end-to-end solutions for iOS, Android, and cross-platform applications. Our apps are known for their user-friendly interfaces, scalability, high performance, and strong security features. We tailor each mobile application to meet the unique needs of different industries, ensuring a seamless user experience. EmizenTech is committed to turning your vision into a powerful digital product that drives growth, innovation, and long-term success in the competitive mobile landscape of Saudi Arabia.
Enhancing ICU Intelligence: How Our Functional Testing Enabled a Healthcare I...Impelsys Inc.
Impelsys provided a robust testing solution, leveraging a risk-based and requirement-mapped approach to validate ICU Connect and CritiXpert. A well-defined test suite was developed to assess data communication, clinical data collection, transformation, and visualization across integrated devices.