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Add to SafariWhen comparing Kendo UI vs Deku, the Slant community recommends Deku for most people. In the question“What are the best JavaScript libraries for building a UI?” Deku is ranked 9th while Kendo UI is ranked 14th. The most important reason people chose Deku is:
Functional approach.
Question Ranking
Pros
Pro Free Core tools
Kendo UI is separated into a commercial and open source frameworks. The core of Kendo UI is in the open source frameworks, but some usability and benefits of Kendo UI are lost without the commercial version.
Pro Platform-based UI
Kendo knows what device it is being viewed on so it can adjust the UI accordingly. If a user is on a PC the user will see things differently than on a mobile device. Between iOS and Android the user will also notice a different as it pulls from the core UI of those core systems.
Pro Theme Builder
An interactive tool that has been created to customize an apps theme. Users are able to select from many pre-defined themes, edit them, and download the theme to bring into a project.
Pro Functional
Functional approach.
Pro Server side rendering
Deku can render it's components and data server side, then it sends those components as HTML to the browser.
This ensures faster initial loading time and SEO friendliness out of the box, since it's indexed as any other static website by search engines.
Pro Easy to learn
Since Deku is very lightweight and has a rather small API, there's not much to learn. It's pretty easy to get started and build something with it.
Pro Can use JSX
Developers using Deku can choose to also use JSX if they want to. This is especially helpful for people who are moving from React to Deku.
Pro Good performance
Deku's diffing algorithm is considerably faster and performs better than most libraries. The dbmonster performance mini-app written in Deku renders roughly 16% faster than other libraries.
Cons
Con Expensive commercial tools [$699, $1,499]
The other core tools developed with Kendo are the commercial tools. There is the Professional version for $699 that will result in more jQuery UI widgets and client support. The $1499 "DevCraft" Complete edition gets developers the DevCraft .NET toolbox, testing and debugging frameworks and applications, as well as priority support.
Con No support for legacy browsers
Deku does not support legacy browsers, or relatively old browsers for that matter. They only support the latest versions of the major web browsers.
Con Not a lot of learning resources
Since it's a rather new library and has a small community, there are not many examples where you can learn from out there. There are also few guides and the documentation is not amazing and has some parts that should be covered better.
