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12 Quick Angular App Optimization Tips You Must Use!

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What is app optimization?

Optimizing your app refers to achieving enhanced app performance and simple maintenance of code. 

You can simply hire an Angular programmer to do the optimization for your Angular app. They can do the same in no time. 

However, to connect with their actions, you must know about what they can and would do to optimize your Angular app. 

Here’s a list of the top 12 simple, quick, and effective tips about practices that can optimize your Angular app.

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Tips to Optimize Your App Angular App

While there are multiple ways for optimization, the few standard ones include:

Fewer $watchers Mean Better Performance

If your app is filled with the use of way too many $watchers, it will cause a decrease in the performance. 

Making use of less $watchers decreases the digest cycle. This, on the other hand, improves the app’s performance. It also enhances the speed of your application for a better user experience. 

Shorten the Digest Cycle

The performance of your application can be told very immediately by a look at the digest cycle in the app. The app’s performance will be affected and slowed down if there persists any presence of a longer digest cycle.

Therefore, it is necessary to keep it short. The short digest cycle will result in a fast-running Angular application.

Use the Best Tools

One thing about using the tools is to test the performance of your application. And speaking of them, Protractor and Batarang are two great tools for checking the app’s performance. While Batarang, a chrome extension, is the best debugging tool specialized in tracking performance benchmarks, Protractor runs tests with sheer flexibility and works on improving performance quickly.

The list of other tools includes TestingWhiz, NightwatchJS, WebDriverIO, etc.

Smaller DOM Structure

A smaller DOM structure takes a long way!

Frequent visits or access to DOM result in a slow app. Therefore, make sure to keep the DOM structure small. A smaller DOM tree structure contributes to boosting your app’s performance. 

Less Use of ng-repeat

If you have happened to make extensive and repeated use of ng-repeat in your Angular app, you are bound to face a sluggish app performance. 

Try to make use of other alternatives such as $interpolate provider to improve the performance.

Server-Side Rendering

Users tend to leave your site if it takes more loading time. This makes server-side rendering crucial. Rendering your app enhances the user experience and the overall performance. 

You can make use of Node.js, .Net, or PHP alongside in order to boost the performance. 

Change Detection

Angular, by default, performs reviewing of the whole component tree for each event through change detection. 

Working on your Angular app change detection acts as a powerful way of detecting any new entry and, at the same time, updating it.

Disable Comment and CSS Class if Not Required

If there is any Comments Directive and CSS class that you don’t require, just disable them. When not in need, these two functions can slow down your app, which would ultimately affect its performance by consuming more time to load these functions.

Lazy Loading Modules 

Almost every application out there consists of more than one page. The multiple pages they may carry include the ones ranging from a login page or about us page to a category page, and many more. 

Hence, whenever the app starts, the browser loads all the code contained by all the pages irrespective of whether you want to visit them. 

Lazy loading here comes into the play. You can use it to limit the modules that are necessary at the initial loading time along with bundle size.

AOT is Important

AOT (Ahead-of-Time Compilation) is highly significant because comparing it with JIT, you would see a change in the bundle size as well. AOT before downloads happens to compile the version and provides a faster rendering time. It is better to hire an Angular developer to help you in this case. 

Turn Back on the Memory Leaks

When your app does not exclude the unused resources, observables are not unsubscribed, or extraneous global variables are declared, the Memory Leaks happen.  

Therefore, you should unsubscribe such variables when not in need. 

Make Use of Pipes

The Pipe mechanisms of Angular come in two different types: 

  1. Pure pipe 
  2. Impure pipe 

The pure pipe provides the same input value and returns the same output. This reduces the need to calculate the values again and again. Making use of a pure pipe minimizes the usage of methods and functions.

The Final Thoughts

Speaking of optimizing your Angular based application, it is incredibly vital as it affects your app’s performance. 

You can connect and hire Angular developers to make use of these practices to optimize your Angular application. They may utilize them all together or one by one based on your app’s requirement.

In the end, ensure that these tips about certain standard practices are a part of your Angular application, because performance matters! 

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