10 Proven Tips and Tricks to Optimize the Performance of Your Angular Application.

10 PROVEN TIPS AND TRICKS TO OPTIMIZE THE PERFORMANCE OF YOUR ANGULAR APPLICATION www.bacancytechnology.com

I once heard an athlete answering an interview on the television. She said, “I am a brisk runner. I have always been winning the race since my childhood. But, this does not mean that I am the best runner. Well, to keep up my performance and endurance, I need to take care of many things. For e.g., I need to exercise daily, keep my diet in balance, hydrate myself, apply some breathing techniques, etc.�

In the same way, you need to optimize your Angular apps so that they execute speedily. Angular is a high-performance framework, but you do need to follow some best practices to keep your Angular app boosted.

In this blog, I have brought some easy tips to speed up your Angular App. By applying these techniques, you can boost your app’s performance, which in turn will boost your business.

As your app performs smoothly and hassle-free, your users are going to love it. Your users will promote your app to furthermore users. This way, by improving your app performance, you can boost your business and grab more customers. If you want to build modern digital experiences, have a look at our AngularJS Development Services.

Here are the 10 Best Practices to Boost your Angular App Performance

01. Limit $watchers and Reduce Digest Cycles As you add data-bindings to your app, you are creating more number of $watchers and $scopes. By doing so, you prolong the app’s digest cycle, which causes lag in your app.

Another way to reduce the digest cycle is by debouncing the ng-model.

Thus, you must use fewer watchers in your app, which will make the digest cycle shorter to improve your app’s speed.

02. Use $watchCollection Instead of $watch I advise you to use $watchCollection instead of $watch because the watch function with 2 parameters is much faster than watch with 3 parameters.

It looks like this: $watch(‘value’, function(){}, true), where the 3rd parameter takes a long time to execute. It deeply checks every object which can alter the app speed.

[img src: Github]

03. Performance Issues With Chrome DevTools To optimize your Angular app, you first need to know what performance challenges your app is facing.

Without being aware of the issues, you cannot fix them. So, before anything else, you need to find the performance bottlenecks of your app using the Chrome DevTools like Timeline and CPU Profiler. These help you with improving the performance of your app. This browser-related technique is beneficial.

04. Disable Comments & CSS Class Many apps have minimalistic features and functionalities; they might not require CSS styling and comments directive. If your app is such that it doesn’t need comments, then you must disable your Comments Directive and CSS class.

These two functions can take time to load, and hence affect your app’s performance.

05. Smaller DOM Trees

Your app may slow down by frequent access to the DOM. Hence, you should keep your DOM structure small, and if possible, you should not change your DOM. Also, you must ensure proper bundling and minification in your program scripts. By doing so, your app page load times will reduce. This trick increases your app’s performance.

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06. Use Loadash of Native Javascript Making use of the Loadask library will enhance the performance of your app significantly. By using it, you can rewrite the program logic and upgrade the in-build methods of Angular. This way, you can substantially improve your app’s speed.

[img src:Â Github]

07. Watch Out For ng-repeat

Your Angular app may slow down as you repeatedly use ng-repeat. Instead of using ng-repeat, you can use its substitutes like $interpolate provider for rendering global navigation.

[img src:Â Github]

08. Use Protractor and Batarang performance tools The Angular team has developed a fantastic testing tool- Protractor, which runs tests very flexibly. By using Protractor, you can improve your app performance tremendously.

The team also developed a debugging tool, which is a chrome extensionBatarang. You can use Batarang to track your performance benchmarks.

Apart from these two tools, other tools like NightwatchJS, WebDriverIO, TestingWhiz, etc. are available.

09. Replace ng-show/nghide With ng-if The show and hide directives keep toggling the CSS styles of a particular element, whereas the if directive removes the elements whenever not needed. Thus, the show directive takes a longer load time. Similarly, you can also use ng-switch as an alternative to ng-if for better performance of your Angular application.

10. Keep a check on ngDoCheck The directive ngDoCheck runs every time you change, and it detects the change. So if you are using this function for any computationally slow affair, your app is going to be slowed down. Thus, you must keep a high check on what and how you are using this function.

Final Word By now, you might have understood that optimizing is not a child’s play. I hope these most common Angular app optimization techniques will help you to improve your app performance.

Not all of these best practices can be utilized altogether in your app.

Looking at your app’s needs, you must implement those tips that benefit your app and business. As we have convinced you by these performance best practices for your business app, hire Angular developer, and see your app winning over the market trends.

Thank you