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Angular News Tuesday, December 5

Angular News TLDR / Table of Contents

  • Angular E-Commerce App with Headless CMS Sanity [Live Demo] – Snipcart
    • Learn to build an Angular e-commerce app strapped on top of Sanity, a powerful headless CMS. Live demo & open source code repo included.
    • headless CMS, Sanity, Angular, Angular app, headless Sanity
  • Building SPA with Angular 4 and Redux – CodeProject
    • Building SPA with Angular 4 and Redux; Author: Pankaj Kumar Choudhary; Updated: 28 Nov 2017; Section: Client side scripting; Chapter: Web Development; Updated: 28 Nov 2017
    • application, d-flex justify-content-between align-items-center, state, bug, class
  • Angular testing made easy – Clarity Design System – Medium
    • 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…
    • memory leaks, spec files, actual spec files, sneaky memory leaks, two-way binding works
  • Reactive Forms in Angular: An Introduction ← Alligator.io
    • Learn the basics of building forms in Angular in an explicit way directly in your component classes with reactive forms.
    • reactive forms, component class, form group, Angular, official Angular documentation
  • Generating Your First Components And Modules in Angular 5 App
    • Angular, Angular 5, Angular Components, Angular Modules, Creating Registration Form in Angular App, Routing in Angular 5,Angular Material
    • input matInput type=, previous posts, component, registration page, button mat-button routerLink=
  • Angular and React
    • Check out Pentalog’s comparative analysis between Angular and React, two of the most popular front-end frameworks used by developers to create websites.
    • React, Angular, React frameworks, overall Angular, performance Angular
  • D3 + Angular = Visual Awesome Sauce
    • A picture is worth 1000 words, but a data visualization is worth 1000 table rows. In a world and internet full of data you need to give users value from the numbers. With the combination of D3 and Angular, we can take that data and create versatile and interactive visualizations…
    • Visual Awesome Sauce, table rows, interactive visualizations, data visualization, users value
  • I love the  community, and here’s why
    • Mobile Apps, communities, Gitter, Free, people
  • I eventually picked some brand spanking new tooling: Angular 5.0 & Sanity CMS.
  • Today I’m going to show how to enable Angular e-commerce on top of Sanity, a promising headless CMS.
  • Let’s install both Angular and Sanity to run everything from the terminal: – – Now run where you want your project to be located.
  • You should be all set with Sanity now; let’s jump into the Angular e-commerce app.
  • Open the file and overwrite the content as such: – – The tag will serve as a placeholder telling Angular where the route component should be rendered.

Tags: headless CMS, Sanity, Angular, Angular app, headless Sanity

  • If each component contains it’s own state then it becomes very difficult to take a screenshot of the state of the whole application because we divided the state at the component level.
  • If we have multiple components and each component contains its own copy of data (state) then there is a huge chance that some duplicate (same data) data is present in multiple components, so this redundant data is not good as a point of view of the modern application.
  • Redux works on the centralized data mechanism that means instead of storing the state at component level we store the state in a centralized location and all the components can access this store.
  • After installing the Redux package now we can create building block like Store, Action and Reducer for our application.
  • The first parameter contains the previous state of the application and second parameter contains the action type and new data payload for the state change.

Tags: application, d-flex justify-content-between align-items-center, state, bug, class

  • TestBed configuration, compiling the components, creating the one you need, getting access to the directives instances, cleaning up, … And if you are working on a real-life project, you probably have many spec files across your code base, all needing the same boilerplate.
  • 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…
  • 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…
  • 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…
  • 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…

Tags: memory leaks, spec files, actual spec files, sneaky memory leaks, two-way binding works

  • While reactive forms can be a tad more complex to work with in the beginning, they allow for much more flexibility and they also help keep your logic in the component class and your templates simple.
  • Here are some examples of things that are easy to do with reactive forms: – – Here’s how to get started with reactive forms in Angular: – – To work with reactive forms, you’ll be using the ReactiveFormsModule instead of the FormsModule, so import it in your app of feature…
  • And now in the component class we define our form group and individual form controls within our form group.
  • Notice how the form group and form control names are the same that we used in our template, and how we initialize our form group in the ngOnInit lifecycle hook: – – Our onSubmit method is just a dummy one and doesn’t communicate the submitted form values to any external…
  • In our template we can access each form control’s value and validity as well as the value and validity of the whole form group as a whole.

Tags: reactive forms, component class, form group, Angular, official Angular documentation

  • No more talking now and let’s code it.Creating your first componentAs we discussed in our previous posts, a component is a set of combined functionality, in our case, we are going to create a component called Registration whose purpose is to serve all the codes for Registration. You can create your…

Tags: input matInput type=, previous posts, component, registration page, button mat-button routerLink=

  • Angular and React are two of the most popular front-end frameworks for developing websites and applications.
  • So you can achieve success with either Angular or React as long as the framework you choose responds to user demands.
  • So, when choosing between the Angular and React frameworks you should always consider the following: – – In a specific project, one framework may provide good, but not astonishing results, and it will still be considered an option if it is easier to use than the other.
  • Angular is an open-source JavaScript framework meant to help developers build modern applications.
  • For example, if you need to make a business application where accelerating time to market is crucial, AngularJS, a framework that functions “right out of the box”, may be the best choice, especially since the launch of Angular 4 – see the project we did for our client, Aktan.

Tags: React, Angular, React frameworks, overall Angular, performance Angular

  • A picture is worth 1000 words, but a data visualization is worth 1000 table rows.
  • In a world and internet full of data you need to give users value from the numbers.
  • With the combination of D3 and Angular, we can take that data and create versatile and interactive visualizations that respond to dynamic data.

Tags: Visual Awesome Sauce, table rows, interactive visualizations, data visualization, users value

I love the #Angular community, and here’s why

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    • Know the difference between a model and a view model and what to put inside the store
    • know how to derive a view model from a model and how to do that
    • understand the notion of selector in the context of store solutions
    • know the difference between smart components and presentation components
    • know how to build smart components using the Ngrx Store library
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