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Angular 14 Data Binding Example Tutorial

by Shahriar Sagor

Hello dev today now in this post i will show you Angular 14 Data Binding example. Angular is a popular JavaScript framework for building web applications. One of its key features is data binding, which allows you to easily synchronize data between your application’s components and the user interface. In this tutorial, we’ll take a look at how to use data binding in an Angular 14 application.

Step:1

First, let’s create a new Angular 14 application using the Angular CLI. Open a terminal and run the following command:

ng new my-app

This will create a new directory called “my-app” with the basic structure of an Angular application. Next, navigate into the new directory and start the development server:

cd my-app
ng serve

Now that the development server is running, you can open a web browser and navigate to “http://localhost:4200/“. You should see the default “Welcome to my-app!” message displayed on the page.

Let’s now create a new component called “my-component” using the Angular CLI:

ng generate component my-component

This will create a new directory called “my-component” in the “src/app” directory, with the necessary files for the component. Open the file “src/app/my-component/my-component.component.html” and replace the existing HTML with the following:

<input [(ngModel)]="message" placeholder="Enter a message">
<p>{{ message }}</p>

This is a simple example of data binding in Angular. The “message” variable is used to store the value entered into the input field. The double curly braces ({{}}) are used to bind the value of the “message” variable to the paragraph element below the input field.

Now, open the file “src/app/my-component/my-component.component.ts” and add the following code:

import { Component } from '@angular/core';

@Component({
  selector: 'app-my-component',
  templateUrl: './my-component.component.html',
  styleUrls: ['./my-component.component.css']
})
export class MyComponentComponent {
  message = '';
}

This defines the component’s class, which includes a property called “message” that is set to an empty string. This property is used to store the value entered into the input field in the template.

Finally, open the file “src/app/app.component.html” and replace the existing HTML with the following:

<app-my-component></app-my-component>

This tells Angular to display the “my-component” component on the page.

If you now go back to your web browser and refresh the page, you should see the input field and the paragraph element. If you type something into the input field, you should see the message displayed in the paragraph element below it. This demonstrates how data binding allows you to easily synchronize data between your component and the user interface.

This is just a simple example of how data binding works in Angular 14. In real-world applications, you’ll likely use data binding to display more complex data and handle user input in a more sophisticated way.

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