15 Proven Optimization Tips For Angularjs Development To Speed Up Your Web App Performance

In this day and age, AngularJS is widely used as the web app framework. It is well-matched for developing the large app built to enjoy the high performance on the web. Won’t it be great if you get acquainted with proven ideas that will optimize the development of AngularJS? Let’s move ahead to discuss the great ideas that will be going to enrich your project.

1. Treat digest cycle as a loop- The good indicator of AngularJS performance is its digest cycle. Take it as a loop that verifies for changes to variables that is being examined. Your application will run in a faster way if your digestive cycle is shorter.

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   Try one-time binding — You can take benefit of different binding if you are using an older version of AngularJS. The one –time binding feature was introduced in AngularJS 1.3 and is not present in Angular4.0.  Before the value add a double-colon. The value will work out once and then fade away from the watcher’s list.

3. Knock out CSS class, and comment directives- You can assign directive as an attribute, element, CSS class or comments while creating it. If you don’t require, then you can put out of action the CSS class and comment directives for performance improvement.
4. **Tight Scooping –**From time to time the JavaScript garbage collector can be able to free up some memory so keep your variables scoped tightly.
5. Make use of Native JavaScript or Lodash- By simply rewriting some of the underlying logic you can boost your application performance by employing Lodash. If you don’t find Lodash in your application then maybe you have to write everything in native JavaScript.
6. ‘Ng-if’ serves you better than ‘ng-show’- On a particular element, the ‘ng-show’ directive controls the CSS display property. The ‘ng-if’ directive takes away the element from DOM and as per the requirement can rebuild it. With the same performance benefits, the ‘ng-switch’ directive acts as an ‘ng-if’.
7. Console.time for debugging issues- Use ‘console.time’ that serves as the great API, in case your application is fighting with debugging problems and affecting the Angular performance.
8. Minimize watchers- Reduce the number of watchers to decrease the time in each digest cycle. It helps in reducing the application’s memory footprints.
9. Avoid ng-repeat- It will be great if you keep away from ng-repeat and build the HTML using JavaScript. To avoid ng-repeat directive is the most significant success for any app.
10. Practice $watchCollection- Angular perform deep checking with $watchCollection that includes 3rd parameter. It is in the form of –‘value’, function(){}, true.
11. Go for the $filter- At the time of each digest cycle, the AngularJS runs DOM to identify the changes and to update values that have changed. The $filter provider lets you preprocess data before it is sent to the View that in turn save some time.
12. Chrome Dev tool profiler- Being handy tool it provides you with the choice to select which profile type you want to create. It delivers performance optimization by working on record allocation timeline, taking a heap snapshot, recording allocation profile that is used for memory profiling. In less than two seconds your app will fully render after this performance optimisation.
13. Infinite scroll- In case all fails, then you can avail the option to lower the number of elements that get looped over by carrying out the endless scroll. For that purpose, AngularJS holds a directive known as ngInfiniteScroll.
14. Employ $cacheFactory- It works as the memorisation method. So if you want to store data that you prefer to recalculate later, then draw on to $cacheFactory.
15. Limit DOM access- Keep your DOM trees small as getting into the DOM can be expensive. Better not to modify DOM in case you can help it. To avoid JavaScript reflow, it is advisable not to set any inline styles.

Conclusive lines:

Indeed online businesses are significantly affected by the performance of web technologies that they use for their project. The useful tips mentioned above will provide the excellent user experience. If you implement these best practices in your development process, then it will help you enhance the performance of your AngularJS application. Choose a best and hire angular developer of your choice to do the AngularJs optimization on a regular basis as improvement of AngularJS performance is an ongoing process. For a more tuned update, you can go through :

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