Home Technology AngularJS‌ ‌to‌ ‌Angular‌ ‌—‌ ‌ Upgrading‌ ‌a‌ ‌large‌ ‌application‌

AngularJS‌ ‌to‌ ‌Angular‌ ‌—‌ ‌ Upgrading‌ ‌a‌ ‌large‌ ‌application‌

AngularJS‌ ‌to‌ ‌Angular‌ ‌—‌ ‌ Upgrading‌ ‌a‌ ‌large‌ ‌application‌

Hello, guys! Are you ready for reading a new article? I hope you have a couple of minutes to read this article about “AngularJS to Angular – Upgrading a large application”. To my way of thinking, this article represents a very well-formed and valuable topic. I am pretty sure that you have already heard about different versions of Angular, if not, I will clarify the most important issues. I certainly hope this topic will help you with your work. So, we will talk about famous options to upgrade.  Also, the last point will be about a full guide to upgrading from AngularJS to Angular. I hope you will like it. Once an American writer said: “The way to get started is to quit talking and begin doing.” I will be thankful to you if you find a grain of truth and usefulness in my article.

Let’s examine this in a little more detail.

AngularJS to Angular migration

As you can see, AngularJS was an especially attractive framework, but with the advent of Angular, it has become somewhat outmoded. Nowadays, AngularJS to Angular migration is tough despite having different migration services presented by Angular. The complexity of Angular migration becomes if the projects are large in development. Devoid of all difficulties it is possible to reduce its complexity by adopting new methods that can smoothen the process of AngularJS to Angular migration. I want to provide for you an insight into the Angular community and highlight some most useful methods that can be used for upgrading from AngularJS to Angular. To put it simply over the years AngularJS has developed greatly since its beginning and so has its practices. Of course, the sections below highlight key methods developed by the Angular community and give the movement of a perfect process.

So, as you can see, AngularJS apps are excellent. Always consider the business case before proceeding to Angular. An important part of that case is the time and effort to get there. One of the keys to a successful upgrade is to do it incrementally, by running the two frameworks side by side in the same application and porting AngularJS components to Angular one by one. This makes it possible to upgrade even large and complicated applications.

Options to Upgrade

And now, let’s turn to the different options to upgrade. Many studies have shown that you must read options very attentively. So, let’ discuss them.

Require: It is clear from the facts that the requirements to upgrade to Angular seem to be obvious. As shown above, there are many special advantages including more active-duty times; lower memory mode; modular construction; faster change disclosure; observables, and so on.  Also, it is reasonable to believe that AngularJS will be depreciated finally.

Options: As everyone knows, to upgrade, one of the first steps is to rewrite the app from scratch using the latest Angular version free.  But, in some cases, it is unreasonable to rewrite a great Angular 1 app in Angular 2 all at once.

Another option is to provide the current app to a point where it is ready to migrate to a more latest version of Angular. But unfortunately, the leap could be too long and there is a risk that the app may remain in the wrong position for too long. As usual, it can improve the workload if a lot of concerning changes or some regular changes are needed to be added to the old part during the development process.

As you see, there are a few options to upgrade. To my mind, it can help in your future migration work.

A full guide to upgrading from AngularJS to Angular


Many types of research tell that before you start migrating to Angular, you are required to give the build of the AngularJS application to Webpack. Such a task is quite time-consuming and able to delay the work significantly.

In fact, you can initialize a hybrid app in a short period of time. After all, you have a great tool called Angular-CLI and a well-thought build of the Angular project.

Service transfer

From my point of view, service transfer is the simplest of the steps for migrating to Angular. Having written a new service in Angular, you can simply join it to AngularJS components of your application. It is very important using ngUpgrade that gives a very useful tool to achieve its purpose. I would appreciate your immediate attention to this interest. You must admit that the service is available to use inside AngularJS, no additional settings are required. Sometimes it follows that you must use the AngularJS service in Angular, if you haven’t upgraded it yet. It is generally accepted and you may carefully connect it in the relevant module through the factory.

Component transfer

You can use the Angular component in the AngularJS part of the application using the grade parts function. It’s directed at producing a helper directive which provides the Angular element to be prepared in AngularJS. Migrating the AngularJS elements to the new Angular app is a somewhat more complicated method than moving services.


In this day and age, quite a lot of existing AngularJS designs take advantage of a router to make such a thing as routing within the application. Another fact worth noting is that, there are no difficulties in the implementation of hybrid routing, when part of the programs is listed in the AngularJS coverage area, and some of them are in the Angular coverage area. Another factor to consider is you can produce a perfect communication using a hybrid UI-router which provides you to complete work with the request routing.

So, today there are more and more Angular app examples, and developers are proceeding to migrate from AngularJS to Angular. Accordingly, if you failed to create a simple Angular app in the first place, then now you know the key features of the AngularJS request migration path.


Just to summarize the main points again. I hope this article “AngularJS to Angular – upgrading a large application” has given you some interesting facts and useful information.  I hope you have gotten some information about it.

Let’s mention the main points of this article:

  • AngularJS to Angular migration
  • Options to Upgrade
  • A full guide to upgrading from AngularJS to Angular

I also recommended you to take a look at such thing as a full guide to upgrading from AngularJS to Angular that consists of:

  • Initialization
  • Service transfer
  • Component transfer
  • Routing

I am grateful for your time and attention! Hopefully, you found this article interesting. Stay safe and have an amazing day!


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