It is not difficult to learn AngularJS. It will take some effort and time, as well as some motivation. Most developers, however, are not taking full use of this since they are committing numerous critical errors. So, today in this blog, we’ve prepared a list of the top eight Angular JS mistakes. Let’s dive in.
- The issue with jQuery: jQuery is a popular toolbox for dealing with events and simplifying DOM manipulations. AngularJS, on the other hand, is a framework for creating scalable apps, testing, and developing apps, so it can’t be used to enhance HTML documents. Because Angular JS contains so many features, a developer should be familiar with them all before implementing jQuery in a project. Even if you need to make DOM changes, you don’t have to utilize jQuery.
- Forget To Test: Compiling and running a program on one’s own workstations is extremely convenient for developers, given that it works properly with all other systems. Because they don’t realize that different conditions can cause defects, developers frequently make the mistake of not testing an application before releasing it. You don’t need to build up an environment for each operating system; instead, test your application with popular cross-browser testing tools. Some tools enable real-time access to over 2000 browsers and operating systems.
- Keep an eye on the number of people who are watching you: Angular JS adds an observer to each binding. Prior bindings are evaluated and compared during each digest phase. Finally, the number of individuals watching is massive. A few observers are acceptable, but hundreds or thousands in the code start to cause issues, slowing down the pace of an application in the browser. Because the Angular JS community has a specified Global maximum limit of 2,000 viewers, it’s a good idea to keep track of the number of viewers right away. Some programmers are capable of writing code that counts viewers, which will aid in the code’s subsequent change and optimization.
- Binding with a Predetermined Purpose: Angular is often accompanied by a set of degree-settling criteria. A model can be limited by the simple use of information sources, resulting in a typical breakdown in the binding system, for example. The difficulties, on the other hand, arise from the need to ensure that all of the names are completely upskilled. Non-primitives are passed as references in AngularJS, while primitives are passed as values. The developer must appropriately assemble their scope objects to remedy this issue.
- Using Anonymous Functions: Your code will be cleaner and easier to manage if you assign your functions and objects. It’s easy to work with and separate this type of well-maintained, well-documented code into files. Not only that, but code like this is easier to test. This makes maintaining the application code easier for the developer and boosts the code’s expressibility.
- Making no distinctions between categories: The key to writing in Angular JS is to compartmentalize your code properly. The basic principle behind MVC is that each view has its own controller. The controller is your logic layer, and it’s vital that you divide it up into little compartments for each facet of your program. It’s a typical error to cram too much functionality into a single controller. Don’t go another route if you need to split your layers to make your application make sense. Instead, make your logic layer consist of smaller, sorted components.
- Manipulation of the DOM: This is the most common mistake committed by new Angular JS developers. A developer takes the easy way out and updates the DOM directly, whether it’s making SVG or refreshing the heading of a web page as the context changes. It’s never a good idea to try to change the DOM directly.
- Not using Batarang: The Batarang Chrome extension is excellent for developing and debugging AngularJS programs. Batarang offers model browsing, which lets users take a peek into the models that Angular has chosen to tie to scopes. This can be helpful when working with directives and isolating scopes to find out where values are bound. Lastly, Batarang offers performance evaluation. Although AngularJS is fast, it can occasionally feel sluggish when a project grows to include custom directives and intricate logic. The Batarang performance tool makes it very simple to detect cycle processes that take the longest. The performance tool also includes the complete watch tree when there are too many observers, which could be useful.
Final Thoughts: Coding errors are unavoidable. The above-mentioned errors are frequently made by developers. So, the next time you’re programming, keep an eye on the above list. Resolving these errors will benefit you in becoming an expert Angular JS developer. You can learn more about Angular JS from blogs, video tutorials, and other resources. The good news is that there are numerous free resources available on the internet. Our advice is to learn from youtube. It’s fun and entertaining. There are plenty of videos on Youtube if you search “Angular JS.” The only problem is that you have no idea which video to select. And the one you select might not be the right one for you.
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