Here Are The Most Common Mistakes To Avoid When Using AngularJS

We, as developers, tend to learn from the mistakes that we make. It is the mantra of life for us, right?

But This Doesn’t Necessarily Always Mean That These Mistakes Need To Be Our Own, Does It?

While practicing the process of mobile app development, many Angular JS developers tend to make some mistake or the other.

With a detailed list of the common mistakes made by AngularJS developers, you will easily be able to narrow down the possible pitfalls which you might encounter in-between coding. This way, you will also be able to decrease the risks which might come along the way as well.

So, What Exactly Are These Mistakes And Pitfalls Those Angular JS Developers Always Fall Into When They Are Building A Web Or Mobile Apps?

Well, we have done the investigation right here for you.

There are some code samples available on Google explaining common mistakes you need to avoid to improve the performance of your AngularJS application.

Some Common Angular JS Mistakes and How To Avoid Them

1. ngOnChanges vs ngDoCheck

There is a watch feature in Angular JS whenever a value gets changes. However, Angular has dropped this feature of watching and scoping, and there are some components that we have, which input as the properties. Apart from that, Angular provides us with the ngOnChanges lifecycle hook.

For the improvement of the run times, which is provided in the updates, the event of OnChanges doesn’t em whenever there is an input property changed in the deep field. Developers are not familiar with this format and hence fall into the trap pretty easily.

However, there are some solutions, such as the use of ngDOCHeck, using the immutable value in the place of input and splitting the input value into parts. Using subscriptions can also be a pretty good solution.

2. Not Unsubscribing At The Right Time

When you are a part of a team in an Angular JS Development company, there is no excuse of failing or ignoring to unsubscribe. In the case of Angular, it is essential to clean up all the subscriptions that you have made. After the completion of using an event or an observable in JavaScript, you need to consider the presence of different strategies and libraries which are built to deal with these simple acts of not unsubscribing.

These constant subscriptions can lead to some memory leaks which might take place in the entire system and that can become a huge problem. Surely you don’t want that to happen in your case, right? So, 2 different scenarios are seen in this case.

You will initiate the OnDestroy lifecycle phase in case it is present in the subscribed component of yours. You will prompt the particular lifecycle hook in the present case where it is a service, and you have already subscribed to it.

To keep it simple, we can say is that when you are not using a service or a component in Angular JS, then you shouldn’t forget to unsubscribe to it as well.

3. Inappropriate Organizing Of Codes

One of the main components of creating the code in Angular JS app development is to organize the code in an appropriate format. Usually, you need to have a Controller for the View when you are working with the MVC. This controller of yours will be the principle layer that you use, and you need to ensure that there are compact components inside the layer for the apps.

One common mistake that we tend to make is putting the additional concept into one controller. If you have to compartmentalize the principle layer for the app, you don’t need to substitute your ways for it. Instead of doing that, you can have some small units which are organized for having a logical layer.

So, we have established the fact that you need to separate the code, which is one of the most essential parts of proper mobile app development.

You might not understand the importance of it now but you will once your team starts working on the project, and you see that it has become a bit simpler to execute, find all the pitfalls, and build the smaller organized parts. With prices and compartmentalized code, you can ensure that your app is flexible enough and helps in the progress of your mobile app development company too.

4. Involvement in jQuery

jQuery is one of the customary libraries that you will need to deal with certain events and also make some changes and alterations into the DOM. Also, Angular is a platform which is used to develop scalable apps, app building, app testing, and for that, you won’t be able to use the HTML documents.

Here is where you might make a mistake. You, as a developer, need to have all the information about the accessible features in the Angular Framework before you engage with jQuery. This is one of the most important things that you always have to keep in mind if you want no complications in the app building and development process.

5. Making Direct Changers To DOM

In some cases, we tend to make some direct changes to DOM and that too from our controller, which is one of the mistakes for sure. However, making alterations to DOM is essential during the operation of the platform of JavaScript. You might have to refresh the page title based on the context change, or you might have just to execute SVG. There might also be a case when you have to put your main focus on the control after there has been a validation error.

The list of possibilities goes on forever. In case you come face-to-face with such problems, you might want to take the easy way out and then manipulate DOM. This is where you will be making the biggest mistake.

To prevent this mistake, you need to use jQuery as it is a global object. Also, using Renderer2service is an excellent idea for sure. This way, you will be able to make sure that you are not tempted to take the easy route and make the direct changes to DOM.

6. Examination Failure

Another one of the common mistakes which you need to avoid is not examining your app before you launch it. This is a pretty grave mistake as you fail to acknowledge that there might be some bugs in the application of yours, and that will affect the performance of your application. There are so many different cross-browser tools that you can use to test the application before its launch.

We are not asking you to test every single environment with the OS but then having a thorough examination is important for sure.

7. Settled Scope Binding

There are several scoping principles in the entire framework of Angular JS. Let us provide you with an example right here. The easy application of different sources of data which are restricted to any particular model can cause a mishap in the specific binding system of Angular JS.

Nonetheless, these difficulties arrive to make sure that the names used are proper overhauled. In the case of Angular JS, value passes primitives and reference pass non-primitives. For fixing this issue, it is recommended that you need to assemble all the objects of scoping in a precise and correct manner to avoid all complications.

The Final Note

Mistakes are pretty common, and we all tend to make it at some point in time. We can say this without a doubt that there might be times when you write some codes and then have a read later; you won’t understand the working process of the code as well. Now that will be a pitfall that you need to avoid for sure.

So, it is important for you as a developer to make some improvements to your skill sets in the best way. Since you will learn from the mistakes that you make, don’t be afraid to make them once. However, mistakes made once shouldn’t be repeated if you want proper mobile app development with Angular JS.

Looking Forward To Building Error-Free Angular JS Solution for Your Business?

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