AngularJs Advantages and Disadvantages – Why AngularJS is Popular

AngularJS is one of the most popular client-side web frameworks available, and it offers plenty of advantages that can make it the right choice for your project or application. For those unfamiliar with the framework, here are the benefits and limitations of AngularJS that every developer should know about before choosing to use AngularJS on a new project.

No Pre-requisite knowledge

If you are a beginner, learning angularjs will be very easy as it has declarative templates that enhance productivity by reducing boilerplate code. The developers of angularjs have paid attention to detail while designing it. This makes writing well structured apps easier with good separation of concerns between different aspects like data, view, business logic etc. Furthermore, client side MVC architecture based on HTML makes it easy to reason about what’s happening in your code. In addition to that Angular comes with many services/directives out of box which can be easily used right away. For example, out of box one can use simple things like data binding or animations which boosts productivity greatly as they don’t have to worry about looking for 3rd party plugins or frameworks.

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Open source

One of Angular's biggest advantages is that it's an open source framework. This means that developers from all over can contribute to Angular, whether through code submissions or design ideas. What does that mean for you? It means there are a lot of resources out there for getting help on your coding questions, troubleshooting common problems, and sharing solutions to common issues. Any other tool would require you to pay for support, which can get expensive fast (especially when working in larger companies). Being able to tap into a wide network of developers means that you'll find an answer to your question quickly and even have time left over to get back to building your app!

Easy to extend

One of Angular’s most touted features is that it allows you to build applications quickly by having a small learning curve, while also allowing you to extend it by plugging in new functionality through its extensive module ecosystem. The truth of how easy it is to extend an application built with Angular into something else lies somewhere in between, as there are definitely some hoops to jump through if you want to do something outside its default functionality. But those extra hoops are not difficult at all, and once you’ve completed them, you’ll have access to a powerful framework that allows you to solve problems in ways previous frameworks simply could not. Hire developer if needed

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Easy to test

Because of dependency injection, it’s easy to test AngularJS applications. Just replace components and their dependencies with mocks. This can sometimes be a bit tricky, but it’s easier than testing many other web frameworks. Also, there are more tools coming out every day to make it even easier. The recently released Karma adds a lot of good stuff on top of Protractor, including an assertion library and more flexibility with running your tests in multiple browsers (see above). All in all, while I don’t think testing is as straightforward as it could be in some other web frameworks like Rails or Django, testing is still one of my favorite parts about using AngularJS.

Great MVC

Once you decide that you need a JavaScript framework, one of your main concerns will be which one to use. There are several different frameworks out there with varying features, uses, learning curves, and communities. But when it comes down to it, you really have just two major options: Backbone or AngularJS. You can read about some other popular JS frameworks in our guide to javascript MVC frameworks for web apps , but for now we’ll focus on these two main players. Backbone was created by Jeremy Ashkenas in 2010; it’s maintained by an active community of developers who contribute via GitHub . The framework focuses on providing structure while remaining minimalistic—it can make up as much or as little of your application as you’d like.

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Less secure

Since you’re introducing more components into your web application, you’re increasing its attack surface—you’ll have to lock down more code. This increases your maintenance costs, as well as introducing security issues that don’t exist with other frameworks. What makes Angular so powerful also makes it potentially dangerous. A lot of developers prefer to build from scratch with a framework like React.js because it reduces their dependencies on external libraries (and ensures they can easily update those libraries if needed). When building a site for work or your client, hiring angular developer (or team) to implement an in-house solution may be very cost effective versus building an app using frameworks like Angular or Vue.js which you then need to maintain when requirements change over time.

No specific way

Of course you can also hire someone, which can help if you don’t have a lot of experience with Javascript or Web technologies. Hiring a developer to do some initial work is a great way to see if there are issues with an idea. For instance, when Facebook launched its website in 2004, they hired developers to create an interface that would allow visitors to search their friends by name. The site didn’t get many visitors because most people couldn’t find anyone on it! This allowed them to focus on other things and build momentum until people flocked to their site years later. Finding your first customers can be hard and hiring someone else can save you from wasting your time building something that no one wants.

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JavaScript-Based

One of Angular’s biggest advantages over other JavaScript frameworks (like jQuery) is that it makes heavy use of a powerful JavaScript library called ECMAScript 6 (also known as ES6, or EcmaScript 2015). ES6, which was finalized in June 2015, makes programming languages for web applications more flexible. For example, one big advantage of using ES6 with Angular is that you can write fat arrow functions (instead of just standard ones) to make code more readable. Fat arrow functions look like a standard function but contain an additional feature—the ability to delegate execution to a separate block of code. In other words, you can have if statements without needing to wrap them in parenthesis first.

Not supported everywhere

Although it’s becoming more popular, you can’t use Angular.js in all web development environments. The library works only with browsers that have specific JavaScript capabilities (document.querySelector and document.querySelectorAll), which means some legacy browsers will be unable to view pages created using AngularJS. This also limits its applications for angular development company or for other frameworks or languages. For example, if your company plans to develop an app for iOS devices that use WebView, you must stick with pure JavaScript or a different framework like Backbone.js since Apple doesn’t support jQuery Mobile in its WebView environment (though there are community plugins available).

Memory leakage

Memory leaks happen when objects that are no longer being used continue to be referenced by other objects. Memory leaks can slow down your app or even crash it. While building a large, complex app in AngularJS, if you make use of third-party libraries in your modules, there’s a chance you could unknowingly introduce memory leaks into your codebase. Monitoring your app for performance issues and finding these problems quickly will be key to scaling up. Staying on top of addressing memory leaks as soon as they crop up will help ensure that slowdowns don’t persist or worsen over time; it’ll also keep crashes from occurring more frequently as well.

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