Crysfel Villa - Learning Ext JS 4

Crysfel Villa is a Software Engineer with more than 7 years of experience with JavaScript on a daily basis. He started his career as a Web Developer working with HTML and basic JavaScript in the late nineties, but then he started focusing on Server Side technologies, such as PHP and Java J2EE.

Before he started working with the Ext JS library he loved to work with MooTools, but in late 2007 he started learning about an awesome new library that was emerging as an Open Source project. At that time the version 2.0 of the Ext JS library was just coming out and Crysfel started using this new library for medium-large projects in the agency that he used to work with.

In early 2010 Crysfel started working as a freelancer, he began to train teams on Ext JS for private companies, writing a blog with tutorials, tips and tricks, developing custom components on Ext JS for his clients, and working on Open Source projects to share his knowledge with the world.

If you want to find more information about his work, you can follow him on Twitter (@crysfel) or download his Open Source projects from GitHub (crysfel).

Writing this book was very hard, especially when you are a busy person and really like to get involved in exciting things. I want to give special thanks to my wife Hazel, who supported me in every step of the process, without her this wouldn't have been possible. She read all the scripts before I submitted them; she usually found some mistakes or things to clarify, her work on this project is priceless.

Thanks to my parents and brothers, who used to keep asking me very often about the project and providing moral support to work and complete this dream. Also, I want to thank all my closest friends for the moral support that they gave me, special thanks to my best friends Carlos and Gina who usually pushed me to continue working on this project.

I hope this book helps people who are just starting with the library, it really makes me happy when I'm able to provide help.

Armando Gonzalez is a Software Engineer with more than 4 years of experience in developing enterprise applications with Ext JS. He has plenty of experience in server-side technologies like PHP, Java J2EE, Node JS, and ROR. Before he started with Ext JS he was a Java and PHP developer.

Since he started using JavaScript and Ext JS he became a JavaScript Evangelist, and started training teams on JavaScript and Ext JS. He loves to teach and share his knowledge with other developers and is always trying to make them use this awesome library.

In early 2012 Armando started a software company, Codetlan, with some of his friends. This company focuses on developing enterprise applications using Sencha technologies. He is also a minor actionist in a Mexican startup called Cursame, where he developed the mobile version of the application and helped developing the main application using ROR technologies.

If you want to know more about his work, you can follow him on Twitter (@manduks) or can watch his Open Source projects on Github (manduks).

Writing this book was a very awesome experience; I would like to dedicate this book to my parents and princess, who have supported me in all the decisions and mistakes I've made, to my brother and sisters, who make my life happier.

Thanks to my colleagues at Codetlan, who supported me a lot while writing this book, and special thanks to Fermin, my uncle, who has taught me a lot.

I hope this book helps in the learning process of this awesome library

Satyajith Bhat is an engineer, who majored in computer science, and a Sun certified Java Developer. He has spent over 6.5 years designing, developing, and maintaining large enterprise systems in Java/J2EE and related technologies. He has a love for all things Java a fascination that started during his days in college.

He was one of the early adopters of Ext JS and has worked extensively with Ext 2.0, using it to build complete enterprise web applications for over 3 years.

He currently works as a Java Developer for a major fashion retail company in New York.

Bruce Sklar has more than 28 years of software design and development experience. For the last 12 years of his career he has been designing and developing user interfaces for web-based applications. Recently, he has been designing and developing user interfaces for mobile websites and applications.

Bruce is a User Experience manager at HandySoft Global Inc. HandySoft is a provider of business process management software.

JD Smith is a UI developer, who loves to bring beautiful web interfaces to life.

Since writing his first BASIC program on an Apple IIe in 1986, he has been passionate about turning engineering into art. His passions also include theology, coffee, music, outdoor adventure, and his wife and children.

For more than 12 years, JD has been consulting on front-end web development projects. He has broad experience with web development and UX design for enterprises, small businesss, and mobiles. To know more about him, visit jdsmith.pro.

Iwan van der Schoor is a Software Engineer with over 15 years of web development experience. He holds a bachelor's degree in Higher Informatics from the Fontys University in Eindhoven (Netherlands) and has been working in software development in the Netherlands, United Kingdom, and is currently working as a Front-end Engineer at a small start-up company in Silicon Valley. His focus in the last couple of years has been building highly scalable management interfaces for complex infrastructure equipment, and all this using the latest web technologies.