Stellar.js

Parallax libs 20 JavaScript Frameworks Worth Checking Out The number of web applications being created and used has grown rapidly since the new millenium. And importantly, so has the sheer complexity of them -- specially on the front end. No more static pages, no sir! You have a ton of sections each interacting with each other and the server and yes, it's as complicated as it sounds and just as hard to pull off. If you think jQuery is the answer, you lose a cookie and get an F grade! Creating responsive, fluid, and maintainable interfaces for web apps isn't as easy as one would imagine -- there is data to be sent back to the server and the results parsed, data stores to be updated, views to be re-rendered and so much else that needs to be done in the background. The monstrous rise in the number of web apps being built recently has really made it apparent that we need better tools and frameworks and the devs have responded with a staggering amount of solutions. Sproutcore powers a lot of high profile apps including MobileMe amongst others.

jQuery Unveil - A very lightweight plugin to lazy load images Most of us are familiar with the Lazy Load plugin by Mika Tuupola. This plugin is very useful and it boosts performance delaying loading of images in long web pages because images outside of viewport (visible part of web page) won't be loaded until the user scrolls to them. Lazy Load has some cool options such as custom effects, container, events or data attribute. That's what I did and this is my lightweight version of Lazy Load with support for serving high-resolution images to devices with retina displays - less than 1k. Usage Use a placeholder image in the src attribute - something to be displayed while the original image loads - and include the actual image source in a "data-src" attribute. If you want to serve high-resolution images to devices with retina displays, you just have to include the source for those images in a "data-src-retina" attribute. If you care about users without javascript enabled, you can include the original image inside a <noscript> tag: Threshold Callback Trigger

Lazy Line Painter Parallax.js Parallax.js is a nifty Javascript framework that allows you to easily add sliding page trasitions and parallaxing backgrounds to any project. Very light weight, very cool. Just like fezes. Add accepts either a name and an element, or just an element. parallax.add("foo", $("#page1")) .add($("#bar")); parallax.foo; //<- woah! To get a nifty parallaxing background, just set a jQuery element to be Parallax.js's background. parallax.background = $("body"); parallax.scaling = 0.4; //background moves 40% with the pages Some like it fast, some like it slow. parallax.speed = 1200; //In milliseconds of course! The meat and potatoes. parallax.bar.left(); //Bar slides in from the left parallax.foo.top(); //bringing back foo from the top parallax.bar.bottom(IAmBack()); //We got callbacks too ;) function IAmBack(){ alert("I'm back foo!") Sometimes we don't need the fanciness. //All pages start out hidden, //remember to show your initial page! //Remember parallax can be aliased!

Frameworks Javascript prometedores para tus proyectos Los populares Frameworks para Javascript: jQuery, Prototype, MooTools y demás, no son lo únicos que existen. Actualmente disponemos de alternativas orientadas a diferentes públicos y tipos de aplicaciones, que no son populares, pero sí prometedoras. Es bueno recordar que los Frameworks son simplemente herramientas utilizadas bajo ciertas necesidades. A continuación te presento una serie de los Frameworks Javascript que deberían ser considerados como alternativas reales. RightJS: El Framework JavaScript correcto RightJS está dirigido al público de los lenguajes dinámicos, intenta posicionarse dentro del grupo de los Frameworks Javascript más populares. Su instalación es prácticamente igual que todos los demás Frameworks, simplemente incluyes el archivo del núcleo en la página, de la siguiente manera: La librería viene con dos archivos, uno es el código actualizado y el otro contiene código soportado por navegadores viejos. Fue probado y funciona en los siguientes navegadores: David Tavárez

Selz/plyr jonom/jquery-focuspoint jQuery.parallax Download git clone github.com/stephband/jparallax Instantiation jQuery( '.parallax-layer' ).parallax( options ); What does jquery.parallax do? jParallax turns nodes into absolutely positioned layers that move in response to the mouse. With a bit of CSS you can either set up windows to see these layers through, or leave them free to roam about. The diagram on the right illustrates what jParallax does to the html: and here's a demonstration with some images: More demos demos/index.html demos/stalkbuttons.html - multiple parallax. demos/remotecontrol.html - parallax by remote control. demos/thumbnails.html - beautiful interactive thumbnails. demos/target.html - demonstrates how smoothly jParallax handles window resizing. Using jParallax The default behaviour of jParallax is to show the whole width of a layer in response to the mouse travelling the whole width of the mouseport. There are various ways to style jParallax effectively. Options Layer Options Events

La revolución de Javascript De un lenguaje de script, Javascript se ha convertido en los últimos años en la plataforma de desarrollo más usada en el mundo. Hoy, Javascript se está reinventando gracias a proyectos como Coffeescript, DART, Node.js y jQuery.Javascript es un lenguaje de script muy simple. Orientado a objetos (como Actionscript 2, sin clases) y basado en la sintaxis ECMAScript, derivado de C. Fue pensado para crear sencillas interacciones en la web, pero hoy es uno de los lenguajes criticos de las plataformas modernas.TODAS las webapps usan Javascript. Facebook, Google (con Instant), Twitter o Maps funcionarían muy limitado o serían imposibles sin JS.La primera revolución fueron los Just in Time Compilers (JIT compiler) como Tamarin de Adobe. DART es el esfuerzo de Google por crear un Javascript más Java. Código : class HelloDartTest { static testMain() { print("Hello, Darter!") Las desventajas: Ese hola mundo de unas 5 lineas de código se convierten en ! Node.js Y esto en el JS del HTML: ¿Desventajas?

highlight.js Chartist - Simple responsive charts You may think that this is just yet an other charting library. But Chartist.js is the product of a community that was disappointed about the abilities provided by other charting libraries. Of course there are hundreds of other great charting libraries but after using them there were always tweaks you would have wished for that were not included. Highly customizable responsive charts Facts about Chartist The following facts should give you an overview why to choose Chartists as your front-end chart generator: Simple handling while using convention over configurationGreat flexibility while using clear separation of concerns (Style with CSS & control with JS)Usage of SVG (Yes! These projects and wrapper libraries are known to me right now that either use Chartist.js or wrap them into a library for usage in a framework. Cross-browser support Note that CSS3 animations on SVG CSS attributes are not supported on all browsers and the appearance may vary.

Demos - JavaScript InfoVis Toolkit JavaScript InfoVis Toolkit Create Interactive Data Visualizations for the Web Home ● Download ● Builder ● Donate Area, Bar and Pie Charts Sunburst Icicle ForceDirected TreeMap SpaceTree RGraph HyperTree Advanced/Other copyright © 2013 SenchaLabs - Author: Nicolas Garcia Belmonte Introduction to JavaScript Source Maps Have you ever found yourself wishing you could keep your client-side code readable and more importantly debuggable even after you've combined and minified it, without impacting performance? Well now you can through the magic of source maps. Basically it's a way to map a combined/minified file back to an unbuilt state. When you build for production, along with minifying and combining your JavaScript files, you generate a source map which holds information about your original files. When you query a certain line and column number in your generated JavaScript you can do a lookup in the source map which returns the original location. Developer tools (currently WebKit nightly builds, Google Chrome, or Firefox 23+) can parse the source map automatically and make it appear as though you're running unminified and uncombined files. Demo: Get original location The above demo allows you to right click anywhere in the textarea containing the generated source. Real world So... Potential XSSI issues