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Extjs Common Interview Answers

1.Why we need javascript Library? Javascript is an awesome language. It’s super flexible.Browsers are the modern UI paradigm. The javascript Libraries now must provide a rich set of UI Widgets. javascript libraries: * JQuery * Qooxdoo * Dojo * Prototype.js * mootools * extjs 2. Why did you choose Ext JS? The overall design of extjs is exemplary.One can learn a lot from it’s unified architecture – no matter which language one is programming in. Extjs requires you to start with one of their base classes – ensuring a consitent model. Consistency is extremely important for the library to be reusable. a.Extjs documentation seems to be very comprehensive and well maintained. b.key aspect of the EXTJS Library is the cross-browser support. c.Build rich Internet applications with Ext JS d. Ext JS framework is the multitude of rich UI elements provided. These elements include forms, dialog boxes, tabs, trees, and grids. e.The Ext JS framework includes support for Ajax implementations. f.Ext J...

EXTJS4 support cross platform browser compatibility

Ext JS  is a cross-browser JavaScript library for building rich internet applications. * High performance, customizable UI widgets * Well designed, documented and extensible Component model * Commercial and Open Source licenses available Make an impact : EXTJS 3.0 is here.. Join over 400,000 developers working smarter, not harder. Deliver results faster with: * Direct, CRUD and REST support for streamlined server communications * New Examples and Components including Charting * Over a 1,000 enhancements and fixes - improved memory management in IE6 * Documented API and refactored CSS. * Backwards compatible to keep you moving forward. EXTJS4 support cross platform browser compatibility. IE 6+ FF 3+ (PC, Mac) Safari 4+ Chrome 10+ Opera 11+ (PC, Mac)