Data Binding and Interpolation in Angular

Data Binding and Interpolation in Angular

Introduction:
Data binding is a powerful feature in Angular that allows you to establish a connection between the component's data and the user interface. Interpolation is one of the ways to achieve data binding by embedding expressions in the HTML template.

Types of Data Binding:
There are four types of data binding in Angular:

1. Interpolation: Binds data from the component to the template using curly braces {{ }}.
2. Property Binding: Binds data from the component to an HTML element property using square brackets [].
3. Event Binding: Binds events from the template to the component using parentheses ().
4. Two-Way Binding: Combines property and event binding to achieve a two-way data flow using [(ngModel)].

Interpolation:
Interpolation is the simplest form of data binding in Angular. It allows you to display component data within the template. To use interpolation, you enclose the expression within double curly braces {{ expression }}. The expression is evaluated, and the result is displayed in the template.

Example:
Component:

typescript
export class MyComponent {
  greeting: string = 'Hello';
}

Template:

html
<p>{{ greeting }}, Angular!</p>

Output:

Hello, Angular!

Explanation:
In the example, the component has a property greeting with the value 'Hello'. Using interpolation, we display the greeting along with the static text "Angular!" in the template.

Conclusion:
Data binding and interpolation are essential concepts in Angular that allow you to create dynamic and interactive web applications by establishing a connection between the component and the user interface.

(Note: The above documentation is written in a brief format with bold headings and subheadings, along with a coding example for interpolation.)