{"id":18265,"date":"2020-09-22T09:14:07","date_gmt":"2020-09-22T09:14:07","guid":{"rendered":"https:\/\/engineerbabu.com\/blog\/?p=18265"},"modified":"2026-01-14T05:51:23","modified_gmt":"2026-01-14T05:51:23","slug":"tips-to-optimize-angularjs-performance","status":"publish","type":"post","link":"https:\/\/engineerbabu.com\/blog\/tips-to-optimize-angularjs-performance\/","title":{"rendered":"Tips to Optimize AngularJS Performance"},"content":{"rendered":"

AngularJS is an open-source JavaScript framework developed and maintained by Google. It provides numerous useful tools for creating and managing front-end web applications. AngularJS is the most widely used web-app framework, and its popularity is rising after the introduction of the latest version, i.e., AngularJS 4.0. Despite that, the Angular experts struggle with different issues based on AngularJS performance. However, it has many options of its own to optimize AngularJS performance.<\/span><\/p>\n

AngularJS development has been used to build many renowned and heavy traffic websites such as Gmail, Google, Paypal, Netflix, Virgin America, and many more. It is based on the MVC model (Model View Controller) and is a great framework to develop Single Page Web apps.<\/span><\/p>\n

AngularJS can handle DOM and AJAX on its own instead of coding them and is the major benefit of using this framework. It also provides various tools for developers to deliver modular building blocks by mix match and test code. The developers can also add an HTML page just by using a few simple tags.<\/span><\/p>\n

Though Angular provides superfast performance by default, while designing complex and realistic applications, it shows some problems and affects the performance of your application. The reason for such a suspicious performance can arise by not following best practices by the team of developers.<\/span><\/p>\n

As a result, it requires to optimize AngularJS applications that can tackle the threat over its performance. So, now we will learn some tips to optimize AngularJS performance to get the best performing application. But before that, let\u2019s know more about AngularJS development.<\/span><\/p>\n

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What is AngularJS?<\/strong><\/span><\/h2>\n

AngularJS<\/a> is a structured, open-source JavaScript framework used for building dynamic single-page applications. It is a web framework that uses code templates written in HTML to carry-out a particular command or function. It was developed in 2009 by \u2018Misko Hevery\u2019 at Brat Tech LLC. Now, it is maintained by Google.<\/span><\/p>\n

AngularJS has data binding and dependency functionality, which saves time from writing lengthy codes. All such features are packaged in a browser and make it the most suitable server technology.<\/span><\/p>\n

There is a hands-on difference between a Static document and a Dynamic Application. Therefore, the Dynamic Application usually prefers libraries and a framework that supports the development of web apps. At the same time, the library held a number of functions that are used to perform specific operations. These frameworks automatically fetch the data and call the relevant function when required. AngularJS can create new HTML constructs that, in the end, eliminate this mismatch effectively. Hence, it creates new syntax with the help of these directives.<\/span><\/p>\n

Concepts of AngularJS<\/strong><\/span><\/h3>\n

AngularJS framework works on the following terminologies or concepts in web app development.<\/span><\/p>\n

1. Modules<\/strong><\/h4>\n

Modules are defined as a container that collects or holds various parts of an application. Basically, a Module is a set of functions defined in the JavaScript file. A module is very useful and works perfectly in dividing an application into small and reusable components.<\/span><\/p>\n

2. Expressions<\/strong><\/h4>\n

The Expressions in AngularJS are expressed with {{ }}, and it indicates the data binding in HTML. Such expressions are added to the HTML templates. However, the Expressions do not support control flow statements while supporting the filters.<\/span><\/p>\n

3. Directives<\/strong><\/h4>\n

Directives indicate the compiler to relate a behavior with the DOM element or modify it. AngularJS framework has several directives such as ng-if, ng-view, ng-app, ng-controller, etc.<\/span><\/p>\n

4. Controller<\/strong><\/h4>\n

The Controller is a JavaScript object constructor function. Basically, it controls the AngularJS web or mobile applications.<\/span><\/p>\n

5. Scope<\/strong><\/h4>\n

A Scope is a JavaScript object that acts as a bridge between the View and the Controller. Overall, it is the source of data in AngularJS. With the help of the Scope object, each assignment and data manipulation takes place.<\/span><\/p>\n

6. Validations<\/strong><\/h4>\n

Validation takes place with the help of AngularJS controls and forms.<\/span><\/p>\n

7. Data Binding<\/strong><\/h4>\n

Data Binding coordinates to view and model about any changes in any of these two.<\/span><\/p>\n

8. Services<\/strong><\/h4>\n

Services are the singletons that are used by controllers, directives, and other services.<\/span><\/p>\n

9. Filters<\/strong><\/h4>\n

Filters allow you to display the data formatting on DOM, and it also extends the behavior of directives and binding expressions. These filters format the values or apply them specifically.<\/span><\/p>\n

10. Dependency Injection<\/strong><\/h4>\n

Dependency Injection is a designed pattern that is used to handle dependencies of numerous components of the software. It also allows the loosely-structured architecture development.<\/span><\/p>\n

11. Routing<\/strong><\/h4>\n

The service of $routeProvider manages all the operations of Routing. It effectively divides the map into multiple views. Routing helps to split the Single Page Applications into different views.<\/span><\/p>\n

12. Testing<\/strong><\/h4>\n

The codes are getting tested, which are developed by the Dependency Injections. Whereas some of the popular testing frameworks are Jasmine and Karma, these two are the majorly used technologies among AngularJS developers.<\/span><\/p>\n

Advantages of AngularJS<\/strong><\/span><\/h3>\n