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In this tutorial we’ll make a Windows batch script to automate building of the custom ExtJS4 framework. We’ll also touch on declaring dependencies in custom components. Ultimately, this serves for much faster load times and less wasted bandwidth:
In this tutorial I will show you how to reduce your ExtJS4 application load times by half, using Sencha SDK Tools. Also, I will show you how to do a clean custom build, the kind that doesn’t cause your production code to occasionally download JS files via autoloader. Another gem of this example – we’ll get our “compiled” JS down to just about 100 KB, instead of 500 KB+ that results if you follow other tutorials.