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    <p>For point 1 I can give you some criteria that I would use:</p> <p>When using JavaScript based frameworks you are typically very fast in the initial creation of the code. In my experience, you are much slower when it comes to maintenance (bug fixes, new features, refactorings) as tool support isn't that good as it is for statically typed languages. So for bigger or long running projects I would always choose GWT because of Java and it's compiler checks/ecosystem/tooling. I think you will benefit of better efficiency and scaling in development over time as you won't have strange problems due to dynamic typing. For smaller projects that won't live too long or won't need big refactorings, JavaScript Frameworks can be a big push in development speed.</p> <p>Debugging needs in the context of your target platform are also a criteria for me. Debugging GWT Code is very nice as long as you have a browser that is supported by DevMode or at least can be used with the new source maps based SuperDevMode. E.g. Safari on MacOS X isn't supported. For mobile devices, you can remote debug JavaScript on Android Chrome but as far as I know this isn't possible for GWT.</p> <p>Another criteria for me is team size and turnover rate. Java based tools (IDE's, code quality checkers, ...) help developers, especially new ones to navigate through other developers' code. This is also true for other statically types languages, but you asked for GWT/Java.</p> <p>The next one is the stack question ... GWT easily solves the client and remote communication part if use a servlet container on the server side. It's also easy to combine it with mature Java enterprise technologies (JPA, EJB, Spring framework, ...). This is a big strength if you need/want to have the stack. If you are going polyglot without JVM on your server side(as mentioned above), this one isn't for you.</p> <p>Sure, there are more criteria for both, GWT and JavaScript frameworks.</p> <p>And the big question is about preferences. JavaScript has really nice concepts (e.g. Closures) but is also a risk due to it's dynamic typing. Which one do you prefer? </p> <p>Regarding point 2:</p> <p>I'm not sure if there is a real alternative for GWT that provides similar features and tooling. Most other frameworks focus on one aspect only (Widgets, optimization, databinding, remote communication, browser support, I18n, ...). That doesn't mean, other frameworks are bad, but you typically need a combination of different frameworks to get the functionality that GWT provides.</p> <p>Regarding point 3:</p> <ul> <li>I would definitely have a look at TypeScript due to it's improved typing and interoperability with JavaScript</li> <li>As far as I remember, Dart has a similar goal</li> <li>The evergreen is JQuery but dependent on your needs there are good alternatives. But that is highly subjective</li> <li>For widgets, Twitter Bootstrap (<a href="http://getbootstrap.com/">http://getbootstrap.com/</a>) is nice if it's way to do things is ok for you. There's even a GWT version of it (<a href="http://gwtbootstrap.github.io/">http://gwtbootstrap.github.io/</a>)</li> </ul>
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    1. USSteffen Schäfer
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    1. COThank you very much Steffen, your answer helps to make the decision. Thanks also for the GWT-Bootstrap link ;) If you want, you may also mention [Node.js](http://nodejs.org/) as a current trend. I am waiting for other answers before accepting... Cheers ;)
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