Join Justin Schwartzenberger for an in-depth discussion in this video Getting data to the component with Input, part of Angular 2 Essential Training.
- [Instructor] You can define properties…for components you create…and make them available to be set…via the property binding syntax…by using an Angular decorator named Input.…Let's refactor the media item component…to move away from the static content…and support sending it a media item to display.…We will start with the media-item.component.ts file.…We need to import the Input decorator to use it.…Now, this comes from the @angular/core scoped package,…and we already have an import statement for that.…
The import statements support multiple import items…in the curly braces separated by commas.…So, we can add Input to this list.…The Input decorator is designed to be used…on a class property.…Let's create a new class property…on the mediaItemComponent class named mediaItem,…and we can decorate it with the Input decorator,…placing the @Input…with the parenthesis in front of the property.…This will tell Angular…that we want it to support any property bindings…placed on instances of the mw-media-item elements…where the property name is mediaItem.…
Justin Schwartzenberger steps through the framework one feature at a time, focusing on the component-based architecture of Angular. Learn what Angular is and what it can do, as Justin builds a full-featured web app from start to finish. After mastering the essentials, you can tackle the other project-based courses in our library and create your own Angular app.
- What is Angular?
- Setting up an Angular template
- Creating a component
- Binding events and properties
- Getting data to components
- Using directives and pipes
- Creating Angular forms
- Validating form data
- Understanding dependency injection
- Providing services
- Making HTTP calls
Skill Level Intermediate
Q: This course was updated on 03/01/2018. What changed?
A: The following topics were updated: directives and pipes, forms, dependency injection and services, HTTP, and routing.
1. Architecture Overview
3. Directives and Pipes
5. Dependency Injection and Services
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