Adopted Typescript as its prefered language of choice. Typescript allows for syayic typing. Angular Applications are made up of a collection of modules. Angular applications can be written in Ts, JS and Dart.
CLI Documentation
Common Getting Started Commands
Decorators
Decorators are used to provide Angular with Metadata for components and mounting them to the DOM
Components
are the backbones of Angular applications and are composed of three things.
Component = Template + Class + Decorator
Template is the User view of the component Class is what brinds your component to life decorator contains metadata that wires up the class to the template
Components use kabab-case my-component-using-kabab-case.ts
the @Component decoration allows you to make classes that are going to be used as Angular components
Date Binding in Angular
- One-Way: Class to Template
<h1>{{expression}}</h2> you can also attach bindings to input elements
<input [target]="expression /> for attribute binding
<button (event)="expression"></button> passes component information from child to parent component
- One-Way: Template to Class
- Two-Way: Databinding between Class and Template
Creating Barrels
for exporting multiple components to your project's app.module.ts to reduce import lines
*Directives
- Control Visibility
- Apply Styling
- Loop Over items
- Extend Application with Custom Scripts
Three Kinds of Directives
- Component: Components are made up of template, class, decorator, component decorators have two required properties selector and templates
- Attribute
- Structural: Ngif and NgFor are examples of structural directives
Angular Lifecycle Hooks
ngOnInit ngOnDestroy