Top 5 Tips to Optimize Your AngularJS Application

admin August 26, 2022

0 11 6 minutes read

The speed of your website directly impacts how users perceive the quality of your website. One of the most important factors contributing to the speed of your website is the AngularJS Application Development. We have been working with a leading AngularJS Development Company and we now have some tips that can help you optimize your AngularJS application and hence increase website speed in no time!

1) Page Weight

1. Use the Angular CLI to create a production build of your app.

2. Minify your JavaScript and CSS files.

3. Use a content delivery network (CDN) for static assets.

4. Implement caching for data requests.

5. Reduce the number of HTTP requests by bundling assets.

6. Use Tree Shaking to remove unused code from your production build.

7. Enable gzip compression on your server. 8. Add HTML caching to your website or web application’s configuration file. 9. Cache DOM queries that return small amounts of data. 10. Limit how many DOM elements are requested at once with browser-specific limiters such as query selector limiters, container limiters, maximum DOM size limits, etc… 11.

2) Avoid Too Many HTTP Requests

One way to help improve the speed of your AngularJS application is to avoid making too many HTTP requests. Each request takes time, so if you can minimize the number of requests, your website will load faster. Here are a few tips for optimizing your Angular app for this:

– Use async pipes whenever possible

– Avoid passing large objects into routes, and then from there into components

– Only pass data as parameters when necessary

– Use the OnPush change detection strategy on areas that don’t require it (change detection strategy specifies how an application determines which parts need to be updated when its data changes)

3) Use Fast Loading Libraries

Libraries like lodash, jQuery, and moment.js can help improve the loading speed of your AngularJS application. Using a CDN (Content Delivery Network) can also help reduce loading times. Another way to optimize your AngularJS application is to use the correct version of AngularJS for your project. Minifying your code can also help improve website speed. Finally, using caching techniques can help ensure that your website loads faster for future visits. If you are optimizing an AngularJS application for mobile devices, you should make sure to cache scripts and stylesheets for the device type. The best practice is to cache scripts and stylesheets in different formats depending on what browsers the users are using. For example, if your site supports Internet Explorer 8+, Google Chrome, Mozilla Firefox 4+, Safari 5+, Opera 11+, then you would want to cache scripts and stylesheets as follows: HTML & CSS for IE8+; CSS for all other supported browsers; JavaScript for all supported browsers. Caching will vary based on what version of AngularJS you are using because each release may have changed how caches work with modules or libraries.

4) Avoid Fetching Data Over An AJAX Request

1. Use the AngularJS service $http instead of jQuery’s $.ajax function. The $http service is more optimized for AngularJS applications.

2. Set up caching to avoid making unnecessary AJAX requests. Caching can be done on the client side using services like angular-cache or on the server side.

3. Use promises to load data asynchronously and avoid blocking the UI thread. Promises will help make your application more responsive and improve user experience.

4. Avoid using complex directives and filters in your templates. These can slow down your application by adding unnecessary processing time.

5. Minimize the number of watchers in your application by using one-time bindings wherever possible. For example, if you have a view that displays some static text, don’t use two-way binding with an expression in the HTML template to display the text. Instead, define a local variable in your controller code, set it to the desired value (e.g., Hi!), and then use ng-bind=var where you want to display it (e.g., {{ var }}). It may seem like overkill now but when things get more complicated this technique will save you from headaches caused by extra watchers constantly updating values that are never actually used again.

5) Don’t Render On Page Load

1) Page Weight

Use the Angular CLI to create a production build of your app.
Minify your JavaScript and CSS files.
Use a content delivery network (CDN) for static assets.
Implement caching for data requests.
Reduce the number of HTTP requests by bundling assets.
Use Tree Shaking to remove unused code from your production build.
Enable gzip compression on your server. 8. Add HTML caching to your website or web application’s configuration file. 9. Cache DOM queries that return small amounts of data. 10. Limit how many DOM elements are requested at once with browser-specific limiters such as query selector limiters, container limiters, maximum DOM size limits, etc… 11.

2) Avoid Too Many HTTP Requests

– Use async pipes whenever possible

– Avoid passing large objects into routes, and then from there into components

– Only pass data as parameters when necessary

– Use the OnPush change detection strategy on areas that don’t require it (change detection strategy specifies how an application determines which parts need to be updated when its data changes)

3) Use Fast Loading Libraries

If you are optimizing an AngularJS application for mobile devices, you should make sure to cache scripts and stylesheets for the device type. The best practice is to cache scripts and stylesheets in different formats depending on what browsers the users are using. For example, if your site supports Internet Explorer 8+, Google Chrome, Mozilla Firefox 4+, Safari 5+, Opera 11+, then you would want to cache scripts and stylesheets as follows: HTML & CSS for IE8+; CSS for all other supported browsers; JavaScript for all supported browsers. Caching will vary based on what version of AngularJS you are using because each release may have changed how caches work with modules or libraries.

4) Avoid Fetching Data Over An AJAX Request

Use the AngularJS service $http instead of jQuery’s $.ajax function. The $http service is more optimized for AngularJS applications.
Set up caching to avoid making unnecessary AJAX requests. Caching can be done on the client side using services like angular-cache or on the server side.
Use promises to load data asynchronously and avoid blocking the UI thread. Promises will help make your application more responsive and improve user experience.
Avoid using complex directives and filters in your templates. These can slow down your application by adding unnecessary processing time.
Minimize the number of watchers in your application by using one-time bindings wherever possible. For example, if you have a view that displays some static text, don’t use two-way binding with an expression in the HTML template to display the text. Instead, define a local variable in your controller code, set it to the desired value (e.g., Hi!), and then use ng-bind=var where you want to display it (e.g., {{ var }}). It may seem like overkill now but when things get more complicated this technique will save you from headaches caused by extra watchers constantly updating values that are never actually used again.

5) Don’t Render On Page Load

Your AngularJS application doesn’t need to render everything on page load. Rendering all of your content at once can slow down the initial page load time, especially if you have a lot of content or complex data bindings. Instead, only render the content that’s necessary on page load and use Angular’s data binding features to update the view as new data becomes available.

You can also use Angular’s async pipe feature to lazy-load components as they’re needed instead of loading them all upfront. Remember To Use ng-cloak: When using Angular’s directive ng-cloak, remember to add it before any other directives that are used in rendering. The ng-cloak directive prevents an element from being rendered on the page while it’s wrapped in this directive – it then takes effect after child elements are added. Precompile Templates: It’s often better to precompile templates so that there’s no extra work happening during every single digest cycle (which is what happens when you’re running regular JavaScript templates).