Angular is the most popular framework for building mobile and desktop applications. The number of developers preferring Angular over other programming languages are countless. There are several aspects and concepts of Angular that a developer need to have a clear understanding. This helps them to develop a performance-oriented application flawlessly.
One of the core concept that you need to be aware of, when it comes to Angular is Data Binding. It is a core concept that allows to define a communication between a component and Document Object Model or DOM.
Table of Contents
Data Binding is one of the most important features in JS based software development language or framework. As Angular is amongst the most popular JS based framework, it also implements this concept, making it easy to define interactive applications. And leaving behind the worry of pushing and pulling data.
The concept defines the communication between component and view. Basically it is the mechanism of linking typescript file with html file and vice versa. So, we can say that Data Binding is passed from component to view (user interface of the application) and from view to the component.
It automatically keep application’s page up-to-date based on your application’s state. The concept of data binding can also be used for specifying things. For example, an image source, the state of a button, or data for a particular user.
It is a mechanism that binds the User Interface applications to the models. In Angular, the two different types of Data Binding are-
In One Way Data Binding, the data flows in one direction. It either flows from component to view or from view to component.
There are mainly three types of one way data binding, they are-
Interpolation is a one-way data binding technique which is used to return HTML output from Typescript code i.e. from the components to the views. The template expression is used in double curly braces ({{ }}) to display data from the component to the view.
Example:
HTML part:
Typescript part:
Output:
Another one-way data binding technique is Property Binding. In Angular, it helps you set property values of HTML elements or directives, which are a defined property in our component Typescript code. It basically, helps in manipulating property. It uses square bracket ([ ]) to bind any predefined property.
Example:
HTML part:
Typescript part:
Output:
A disabled button will be displayed which will be enabled after approx 5 seconds.
Event binding feature is used to handle various events raised from the DOM structure. The events are like mouse movement, button click, keystrokes etc. When the DOM event happens, it calls the specified function in the component. Event binding uses regular brackets within which the target event name will be mentioned on the left of an equal to (=) sign and the template statement on the right side will be written within quotes (“ ”).
Example:
HTML part:
Typescript part:
Output:
A button will be created. Whenever the button will be clicked, myFunction() will be called, and an alert box will be shown which will display “Hello Angular”.
Two-way data binding will allow the application to share data in two directions i.e. from the components to the views and vice versa. This makes sure that the models and the views present in your application are always synchronized.
Two-way binding combines property binding with event binding:
Example:
HTML part:
Typescript part:
Output:
Here Input box is being used to send data from view (html) to typescript, and besides value is coming from typescript to view (html).
Angular is a leading JavaScript programming language, which is used to create scalable, enterprise, and performance-oriented applications. With the data binding feature, you can develop high-end applications easily.
Also Read,
“I think the Software Testing Course is apt for me. Webskitters Academy has offered me the best experience for online training. Every learner can learn more about several concepts. The assignments to write Test cases and Test case Scenarios equipped me to learn to work on real-time projects. I got a job at a reputed firm with the help of the placement cell of this institute. I am extremely happy.”
“After the Software Testing course at Webskitters Academy, I now have the confidence to face testing interviews. I trusted the institute and here they gave me the best of the best. The assignments are great and they helped me to think out of the box and come up with new questions. I am extremely happy and satisfied and also got a job through this institute.”
Kolkata,India
“I am 100% content with the Software Testing course at Webskitters Academy. The professionals explain every question and doubt that aroused in my mind. The entire course is explained the thorough and step-by-step process. It is very professional but the learning method and environment are very friendly.”
Kolkata,India
“I am glad that I took the decision of joining Advanced PHP and MVC (Laravel) online course at Webskitters Academy. I joined the course during the lockdown, to learn programming. However, it is turned out to be more than just a course. It became my passion. The tutors were so good and encouraging. I even got a good placement during the pandemic, just a few days after the completion of the course.”
Kolkata,India
“Learnt PHP Laravel under Swarup Kumar Saha Sir. He is very helpful and excellent trainer. I am done this course online. The training was good I improved my coding skill and also improved my communication skills.”
Kolkata,India
“Learnt PHP With Laravel under Swarup Kumar Saha Sir. He is an excellent trainer. The training was good I improved my coding skills as well as communication skills.”
“I did training on Android App Development using Core Java from here. I guess, I couldn’t have find a better faculty than Swarup Sir. The thing I liked the most is that he is very friendly and always eager to help us on any terms. Apart from teaching us Android in a very great way, he helped us in personality development too, as he always motivated us in a good way. So, I guess these training days were not only for learning but also for finding our own skills and mastering them. Thanks to Webskitters for providing us this opportunity. I would like to learn more from here.”
Kolkata,India
“I had a fantastic experience with this academy. I trained by professionals. I learned Android App Development using Core Java properly and got a job very early in a reputed software company through this academy. Many many thanks to Amit sir, Riyanka ma’am and Debjit sir.”
Kolkata,India
“I have done Android App Development using Core Java training from this academy for one month. They cover most of topic in one month. Trainer (educator) was very supportive and polite.”
Kolkata,India
“Right after completing my Android App Development with KotlinCourse at Webskitters Academy, I landed a job in a reputed firm. This was an incredible experience for me as before that I was looking for a job for almost a year but failed to get any. Thanks to the professional training I took from the experts that helped me start my career instantly.”
Kolkata,India
We are glad to have hired the students from Webskitters Academy! We have to mention that they are trained to be the professionals. From the first day onwards, they have shown their excellence, and it is very impressive. Our team is also happy with their involvement and performance. Looking forward to hire more excellent students from them!
We are happy with the quality of training that the Webskitters Academy students have received. Few of them have been on-board with us recently and they have impressed us. We would recommend our associates to hire freshers from this institute, they make sure that the students are well-trained and prepared for the industry.
We hired the students from Webskitters Academy and to our surprise we found out that they are brilliant in their work! No way we can call them students, they are professionals. They know their work, have the skills and are well-groomed for the profession. Thanks, Webskitters Academy for such a comprehensive training!
“It was for the first time that we hired students from Websitters Academy. We had some doubts regarding freshers, but to our surprise, they are very good in their work. They know exactly how to do a particular job keeping the industry standards in mind. Our organization is happy to have them. Their codes, and development skills are perfect, suitable for the industry. It proves that they have been trained comprehensively. Good work by the faculties of Webskitters Academy. We will definitely recruit more young talents from you.”
1800 419 9397 (Toll Free)