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Today in Top Angular News – Friday, December 28

Today in Top Angular News – Friday, December 28

Today’s topics include angular7, webdesign, webdevelopment, typescript, digitaltransformation, javascript, Spring, MVC, JSP, AngularJS, ngNepal, Framework, VueJS, React, and reactjs. Special thanks to contributors Anil Singh, Chad Michel, Lim Han, Jeremy Likness, @dleroari, Dler Ari, Paul Krill, Nishu Goel, @cuelogicTech, Cuelogic Technologies, @maxim.koretskyi, Max Koretskyi, aka Wizard, Bruno Krebs, webcodegeeks, 3p_ar, NG_Tutorial, and maxim_koretskyi.

Quick Look – Angular Async / Await – Don’t Panic Labs

  • What is the difference between synchronous and asynchronous code?
  • Async / await allows us to write more readable async code.

Using it in C# land makes async programming almost as readable as synchronous code. Quite frankly, you can read synchronous code and asynchronous code, but it is kind of a mess. They found a way to make asynchronous code easier to read by adding in the concept of promises. Continue reading

Migrating Spring Web MVC from JSP to AngularJS

This article is written for Spring Web MVC developers who are familiar with JSP development and who would like to understand how to migrate to a client side Javascript framework like AngularJS. As it is based on an MVx architecture, AngularJS provides a structure to Javascript development and thus gives Javascript an elevated status compared to traditional Spring + JSP application that probably uses Javascript to provide that bit of interactivity on the user interface. With AngularJS, your Javascript application will also inherit features like Dependency-Injection, HTML-vocabulary extension (via the use of custom directives), unit-testing and functional testing integration as well as DOM-selectors ala JQuery (using jqLite as it provides only a subset of JQuery but you could also easily use JQuery if you prefer). When you are developing a Spring Web MVC application using JSP, you will likely use the Spring-provided form tags to bind your form inputs to a server side model. Using AngularJS, it is possible to write relatively complex User Interfaces in an organised and elegant manner, always encapsulating the required logic within your components and never running the risk of errant global Javascript variables polluting your scope. Continue reading

Understanding Providers, Services, and Factories in Angular

I’ve read quite a few posts (as well as questions posed) about the differences between services and factories in Angular. With the factory approach you can specify a function to resolve your dependencies and then return an object that uses them, like this:

Notice that the outer function takes a dependency on a service called “myAlert”. The end result is exactly the same, so your choice of factory or service should be based on your preference for supplying the instance – do you prefer to create classes and pass the constructor function, or would you rather return something explicitly from a factory function? The provider looks like this:

It contains an internal variable for configuration, exposes a method to configure it, and supplies a $get method to generate the instance (in this case, we’re using the inline annotation to inject the $window service). If I wanted to make the optional date a parameter and not a configuration option, I would do away with the provider and just use a service or a factory. Continue reading

A comparison between Angular and React and their core languages

Angular and ReactOne thing that is really great about React in terms of performance is the Virtual DOM, which you’ve probably heard about a couple of times. So who uses which shop
Google Express

If you know of any large, well-known companies using Angular, please share with a link.TypeScript and JavaScript (ES6+)
As I mentioned, it can be misleading to only compare Angular and React without focusing on the core language each one has to offer. It is important to notice that TypeScript was released in the period of ES5, and during that time, ES5 was not a class-based OOP language. Alright, so if you are still confused what statically typed means, check this out:
Static typed property
Static typed property comparison between JavaScript and TypeScriptStatic typed argument
Static typed argument comparison between JavaScript and TypeScriptI’ve learned that lots of people believe that a statically typed language means reliable code, and is most often used as a winning argument over dynamically typed languages. Takeaway notes
React handles memory-management efficiently (virtual DOM)
React uses JavaScript (ES6), a recognized web-language since 1995
Angular uses TypeScript, released in 2012
Statically typed languages are great, but does note make code more reliable
Dynamically typed languages require less time to write and more flexibility to use your creativity (fewer typos)
Learning a statically-typed language may be a challenge, especially if you’ve only been working with dynamically typed languages
ES6 has implemented lots of great features such as modules, classes, spread operator, arrow functions, template literals that allows you to write less, cleaner and more structured code (syntactic sugar)
TS is simply ES6+ with typos and more

The framework/component-library you choose may influence how much time you spend programming and your budget. Continue reading

What’s new in Angular Version 7

  • You can download the Angular 7 production release from GitHub.

The release candidate for Version 7.2 of Angular, Google’s popular JavaScript framework for building mobile and desktop applications, is now available. Angular provides dependency injection, particularly useful for assembling data services for applications, along with use of an HTML template to compose components. In Angular, developers still compose components with an HTML component that connects to TypeScript code for imperative parts of the program. Continue reading

Contemplating 2018

As and when I returned from the fellowship programme, I still had time on my plate to learn something and my Twitter feed was attracting me a lot towards the JavaScript framework Angular with people like Ben Lesh, Dhananjay Kumar doing many exciting things in Angular and talking frequently about it. Some glimpses of the Nepal conference are here in this video:

Once I was through with the basic concepts, that is when I started writing articles about important topics of this framework and building a blog to help out the community and the people in the learning phase. It was time now that I started getting projects from Publishing houses, Technical blogs and companies to write Technical blogs in Angular and creating tutorial videos for them. Working after office hours and on the week-ends, I wrote 50 articles in Angular by the last month of the year with some blog posts on the topics like:

Some of the articles that I wrote for DotNetTricks were:

Some of the tutorial videos that I created for BPB Publications are:

The year ended with the news of another opportunity to speak at India’s largest Angular conference in Gurgaon, India which will be held in February, 2019. To summarize, it has been a very productive year for me and now, I hope to fasten my belt in the upcoming year 2019 by ing deep into Angular concepts, writing more informative articles, getting to speak at more Angular conferences with the hope of getting to interact more and more with the community. Continue reading

Consider the popular State of JS Survey of 2018 that gives an account of the number of libraries that developers are currently using:
Although there are many libraries available today, survey results prove that Vue, React, and Angular continue to be the market leaders. Adaptability: Most of the developers who adapt Vue switch to it from other major frameworks. One of the main cases where React finds extensive usage is when developers need to break down complex codes and reuse them in an error-free environment that has the capability to handle real-time data. Unlike Angular that requires a steep learning curve of being proficient in TypeScript, React’s dependency on HTML makes it one of the easiest JavaScript libraries to pick up. This makes it easier for new developers to pick up the framework and also understand the code of other projects as compared to earlier versions of Angular. Continue reading

Best stories of 2018 on Angular-In-Depth – Angular In Depth

Best stories of 2018 on Angular-In-Depth
Angular articles you really want to read
This article marks the second anniversary of the Angular-In-Depth publication. Understanding The Router’s Navigation Cycle by Nate Lapinski
This article answers the question of what really happens when you click a link in an Angular application. Creating a Library with Angular CLI by Todd Palmer
This article walks you through the details of creating an Angular library. Creating a toast service with Angular CDK by Adrian Fâciu
This article demonstrates how to implement a custom toast message feature. So I’ve decided to cheat a little bit and put a few extra ones here 😁:
A gentle introduction into change detection
This article provides an overview of the change detection mechanism in Angular: internal data structures used to represent a component, the role of bindings and the operations performed as part of the process. Continue reading

Using Python, Flask, and Angular to Build Modern Web Apps – Part 1

So far, this series contains three parts:

In this series, you will use Python, Flask, and Angular to build a web application based on a modern architecture. As you can see, by choosing Python, Flask, and Angular to build web applications, you can rest assured that you will always be able to rely on great and thriving communities to support you. Now that you learned why Python, Flask, and Angular form a great stack to build modern web applications, you are ready to install the local dependencies. Therefore, use the following commands to start structuring your app:

After that, you will want a directory specifically created to your Flask backend application:

Then, you will want to use to create a virtual environment. After defining , you can refactor the file to expose two endpoints:

This file now creates a Flask application, based on SQLAlchemy and PostgreSQL, that is capable of accepting requests to create new instances of and capable of accepting requests to serialize these instances as a JSON array. Continue reading

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