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Add to SafariWhen comparing ExtJS vs Webix, the Slant community recommends Webix for most people. In the question“What are the best client-side JavaScript MV* frameworks?” Webix is ranked 14th while ExtJS is ranked 18th. The most important reason people chose Webix is:
Webix is one of the most extensive UI component libraries, second only to Sencha ExtJS. Not only considering the number of widgets, but also the API methods for manipulating these widgets.
Question Ranking
Pros
Pro Provides built in support for UI widgets
Huge amount of widgets available, also easy to build custom widgets by extending the available components.
Pro Professional support available
If you buy a license you can get professional support and premium forums. Support has short contact times and solutions are of great value.
Pro Well documented
ExtJS' documentation is very detailed and helpful. All concepts and parts of the framework are thoroughly explained.
Pro IDE plugins available
Plugins are available for JetBrains, Eclipse and Visual Studio.
Pro Easy reusability of code
By using the packages and custom components, code can be reused very simply.
Pro Flat learning curve
Anyone with basic JavaScript knowledge can start using this framework.
Pro Forum support
Forum support is available.
Pro Excellent design tools
Eg: Sencha Architect.
Pro Developer friendly integrated tools
Sencha Cmd, Sencha Inspector and some IDE plugins etc., are the tools which helps developers to speed up their development.
Pro A lot of widgets
Webix is one of the most extensive UI component libraries, second only to Sencha ExtJS. Not only considering the number of widgets, but also the API methods for manipulating these widgets.
Pro Views can be constructed using JavaScript without HTML
The most common way of working with webix is to create a JSON configuration of your view in JavaScript. When you use TypeScript, you get complete typechecking and intellisense in your IDE.
Pro Seems to be quite stable
Even the most complicated GUIs are bug-free most of the time.
Pro Webix Jet
The webix Jet library adds all the required features for SPA development (routing, template loading, ...)
Pro Extremely simple to implement.
To get started is extremely simple. It has a low learning curve.
Pro Mature project
Regular updates and releases.
Pro Great support from the webix team
The company behind webix is really quick in answering any questions you have on their forum or via email.
Pro Awesome responsive material skins
Great design and icons pack.
Cons
Con Completely unreliable with regard to licensing and pricing
That ExtJs is expensive is not the problem, but what they did is started completely free, then switched the licensing model when they had profited from the community. Also, they suddenly switched from a single user license to a minimum of 5 users.
Con License
Ext-JS is not for free, it comes with a license.
Con Large footprint
The library is almost 500Kb in size hence significantly affects your page load time.
Con Expensive licensing
ExtJS is free for use in open source projects, but you have to use the unstable version which is riddled with bugs. Furthermore, to build a project (even if it's open source), you have to buy their proprietary tools.
For commercial projects, it costs $665 for a license.
Con No real support
You only get a limited premium questions that could be answered via the support and if the issue is too large then you might lose all your credits (it has a credit system for support) in one question.
In addition the replies in premium forum are sometimes less thought of than you would get in stackoverflow.
Con Lots of bugs
The community is very small and this is because the licencing is very expensive. Therefore not many people to test the framework and give feedback in order to fix.
They try to do everything in house which means that a small company (linkedin shows about 100 employees) tries to imitate something very large.
The scaling problems lead to lots of bugs and instability.
Con No web-workers
ExtJS does not take into account the asynchronous nature of todays web browsers where you can do heavy stuff on the background.
Con Tooling is poor
They had a GUI architect tool, but that tool never was up to date with the current framework version. Now they even seem to have abandoned the whole architect app. Also, to build a ExtJs app you have to use their tool (and then you have to pay, from that moment ExtJs is no longer GPL). But this tool also has lots of bugs.
Con Steep learning curve
ExtJs is a very opinionated framework. You have to do it the ExtJs way or it's the highway. So, a lot of time, things in your own opinion doesn't make sense or don't work in the way you expect it.
Con Quantity yes, quality no
There is a large amount of source code that can be useful and indeed all the samples works flawlessly.
When you try to get into more complex scenarios you will find yourself in situations where things just do not work as expected. You will have to do manual work.
Con Commercial license
It's not free for commercial applications.
Con Not very popular
Not really a reason to not recommend it. But it has still a small user base. It deserves a lot more attention.
Con Not modular
The library is not modular (except for some additional more complex widgets). If you only need a few widgets, you still need to include the entire library.
