5 Best JavaScript Frameworks in 2017

  • In the meanwhile, JavaScript web frameworks can become a silver bullet for quick web app development.
  • Angular.js is often referred to as an MVW (Model-View-Whatever) framework and among the top benefits, for startups and mid-sized companies, people name: quick code production, easy testing of any app part and two-way data binding (changes in the backend are immediately reflected on the UI).
  • As for now, it is reasonably called the most used JS framework for SPAs (Single-Page Applications) development and it boasts the largest community of developers.
  • Back in 2015 Ember was called the best javascript framework for web application, leaving behind React and AngularJS.
  • When it comes to quick web development or prototyping, JavaScript frameworks are among the most favorable and 2017 won’t become an exception.

JavaScript popularity continues its rising. In 2016 we’ve witnessed such great changes, as AngularJS entire upgrade and introduction of Angular 2, ultimate dominating of jQuery that is applied on 96.5% of all JS sites, evolution of ECMAScript, two updates of Node.js in April and October accordingly, React finest hours, and even more.  What to expect from 2017?
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7 JavaScript Libraries for Dashboards

  • In this article, I will show you some of the JavaScript libraries that will help you create beautiful and customizable dashboards for your projects.
  • Gridster is a jQuery plugin that makes building intuitive draggable layouts from elements spanning multiple columns.
  • gridstack.js is a jQuery plugin for widget layout and it was inspired by gridster.js.
  • Packery is a JavaScript library and jQuery plugin that makes gapless and draggable layouts.
  • A jQuery library built on top of the GridList class that translates the generic items positions into responsive DOM elements with drag and drop capabilities.

Dashboard is a visual indicator of an objective or a business process. It is an invaluable tool for cutting through data clutter and getting down to the essentials. It helps you to evaluate information and allow to make the correct decision in a timely manner. Live visual dashboards consist of charts, maps, graphic symbols, data…
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Exchange Data Between Directive and Controller in AngularJS

  • The project required me to write a directive for a canvas, get the Base64 image data when a user draws on it, and make it available to the controller of the page which contains the directive.
  • This boils down to the fact that you need to access the scope of a Directive from a page Controller and access the scope of a page Controller from a Directive.
  • Now let’s say we have the following controller:

    And the following template:

    The problem: we would like to bind the count variable of myCtrl to the internalCount variable of the counter directive.

  • This can easily be solved by binding a variable from the controller to the scope of the directive.
  • Your directive should now look like this:

    And your template like this:

    You will find a working fiddle here with all the code to this quick tutorial on how to exchange data between a directive and controller in AngularJS.

In this Quick Tutorial we will look at How to Exchange Data Between Directive and Controller in AngularJS and bind the scopes to each other.
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Angular testing made easy – Clarity Design System – Medium

Angular testing made easy @EudesPV  #AngularJS #Nodejs #JavaScript #Testing

  • So what’s the most efficient way to centralize that boilerplate, so that your actual spec files can focus on the unit tests themselves?This article will show you a neat solution to this problem, using two little-known features: Jasmine’s user context and Typescript’s ability to type this.
  • There are two main advantages to this approach over local variables: it helps fight the memory leaks that keep creeping up on large projects’ tests, and it also offers a very easy way to have your beforeEach and it in two different files, which is much harder to set up with local variables.CAUTION: We are using a plain function() {} here, rather than the very useful () = {} arrow notation from Typescript.
  • One of the recommended patterns (and the one we use the most, by far, in Clarity) is to use a “test host” component which includes the actual component to test in its template:This example makes a few assumptions to keep it simple: the templates are all inline or inlined at build time so we don’t need to MyUserComponent doesn’t depend on other components, … Feel free to adapt to your specific use case.Introducing the TestContextIf we want to extract all the boilerplate into a separate file, we need to decide what the type of the user context passed around by Jasmine should be.
  • The one difference is that we’re getting the tested directive through the injector, rather than componentInstance, once again to be able handle attribute directives and components at the same time.The final spec fileLet’s remove all the boilerplate from the user component’s spec file and use our brand new context:It’s now entirely comprised of the unit tests, no distractions or verbose setup to go through.
  • That’s a win!To improve this further, you could easily:include the setup() call at the root of the tests to have it always be available,allow passing extra directives to declare or modules to import, in case your component depends on other ones,add additional shortcuts to the TestContext interface,throw explicit errors when trying to test with a host component that does not contain the directive,…In our case, for instance, we have a shortcut to get providers from the tested element’s injector.

If you’re here, you have probably already read the Angular documentation on testing, and maybe have written a few tests for your own project. If you have not, I can only suggest you do so, because…
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Angular 2

  • This course will also show you how to use the Angular 2 CLI and feature a complete project, which allows you to practice the things learned throughout the course!
  • As a person new to both JavaScript and Angular 2 I found this course extremely helpful because Max does a great job of explaining all the important concepts behind the code.
  • This Course uses TypeScript

    TypeScript is the main language used by the official Angular 2 team and the language you’ll mostly see in Angular 2 tutorials.

  • Due to the drastic differences between Angular 1 and Angular 2 you don’t need to know anything about Angular.js to be able to benefit from this course and build your futures projects with Angular 2.
  • Get a very deep understanding of how to create Angular 2 applications

    This course will teach you all the fundamentals about modules, directives, components, databinding, routing, HTTP access and much more!

Master Angular and build awesome, reactive web apps with the successor of Angular.js
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Vue.js Is Good, But Is It Better Than Angular Or React?

  • Now, from our last blog, you already know that Vue.js is one of the top JavaScript frameworks and it is replacing Angular and React in many cases.
  • Evan You, the owner of Vue describes the reason rightly

    Now lets see few codes which will give you some basic insights (credits: fadeit.dk)

    Bottom line of Vue.js vs Angularjs : There are many tools in Angularjs and so many complex syntax that it can confuse you sometimes.

  • How React Does it:

    How Vue does it:

    Two way binding in Vue.js is quite simple when you use v-model.

  • Here is a table that would provide you a few valuable information about these three frameworks –

    In today’s time Vue is not as popular as React (maintained by Facebook) or Angular 2 (supported by Google).

  • If you need to Hire Offshore React developers, Angular or Vue developers , ValueCoders can help you to build your web applications.

Vue.js is replacing Angular and React in many cases. This brings in the topic of this blog ‘Vue.js is good, but is it better than Angular or React?’
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Why Do Developers Now Compare Vue.js to JavaScript Giants Angular and React?

  • It was 2016 when Vue.js rose to fame and gained so much traction that it’s now seen as an alternative for even well established JavaScript libraries, such as Angular and React.
  • Since Angular belongs to search engine giant Google and React comes from social media behemoth Facebook, developers still trust and use those libraries more than Vue.js.
  • This blog attempts to shed light on why there is a growing belief among developers that Vue.js is set to become the top JavaScript library, leaving behind Angular and React.
  • The reason many developers are turning to Vue is that it addresses the issues of React and Angular.
  • But, one must not forget that Angular and React are still very big names in the JavaScript world, whereas Vue has just begun to rise.

Vue.js, an MIT-licensed open source project, is a JavaScript library for building web interfaces. The library was first released in 2013, but not many developers took cognizance of it in web framework technology for the next two years. It was 2016 wh
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