This tutorial lesson demonstrates how to add property binding to a template and use it to pass dynamic data to components.
What you'll learn
- Your app has data bindings in the
HomeComponent
template. - Your app sends data from the
HomeComponent
to theHousingLocationComponent
.
Conceptual preview of Inputs
In this lesson, you'll continue the process of sharing data from the parent component to the child component by binding data to those properties in the template using property binding.
Property binding enables you to connect a variable to an Input
in an Angular template. The data is then dynamically bound to the Input
.
For a more in depth explanation, please refer to the Property binding guide.
-
Update the
HomeComponent
templateThis step adds property binding to the
<app-housing-location>
tag.In the code editor:
Navigate to
src/app/home/home.component.ts
In the template property of the
@Component
decorator, update the code to match the code below:Add housingLocation property binding
import {Component} from '@angular/core';import {CommonModule} from '@angular/common';import {HousingLocationComponent} from '../housing-location/housing-location.component';import {HousingLocation} from '../housinglocation';@Component({ selector: 'app-home', standalone: true, imports: [CommonModule, HousingLocationComponent], template: ` <section> <form> <input type="text" placeholder="Filter by city" /> <button class="primary" type="button">Search</button> </form> </section> <section class="results"> <app-housing-location [housingLocation]="housingLocation"></app-housing-location> </section> `, styleUrls: ['./home.component.css'],})export class HomeComponent { readonly baseUrl = 'https://angular.dev/assets/images/tutorials/common'; housingLocation: HousingLocation = { id: 9999, name: 'Test Home', city: 'Test city', state: 'ST', photo: `${this.baseUrl}/example-house.jpg`, availableUnits: 99, wifi: true, laundry: false, };}
When adding a property binding to a component tag, we use the
[attribute] = "value"
syntax to notify Angular that the assigned value should be treated as a property from the component class and not a string value.The value on the right-hand side is the name of the property from the
HomeComponent
.
-
Confirm the code still works
- Save your changes and confirm the app does not have any errors.
- Correct any errors before you continue to the next step.
Summary: In this lesson, you added a new property binding and passed in a reference to a class property. Now, the HousingLocationComponent
has access to data that it can use to customize the component's display.
For more information about the topics covered in this lesson, visit: