Angular Templates

Templates in Angular define the structure and layout of a component's view. They use a combination of HTML, Angular directives, and bindings to create dynamic and interactive user interfaces. This tutorial provides an overview of Angular templates and how to use them effectively.

What is an Angular Template?

An Angular template is an HTML snippet that defines the view for a component. Templates can include Angular-specific syntax, such as directives and bindings, to dynamically update the view based on the component's data and logic.

Basic Template Syntax

Here is a simple example of an Angular template:

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

@Component({
  selector: 'app-example',
  template: `
    <h1>{{ title }}</h1>
    <p>This is an example component.</p>
  `,
  styles: [`
    h1 {
      color: blue;
    }
    p {
      font-size: 14px;
    }
  `]
})
export class ExampleComponent {
  title = 'Hello, Angular!';
}

Data Binding

Data binding in Angular templates allows you to synchronize the component's data with the view. There are three types of data binding:

Interpolation

<p>{{ title }}</p>

Property Binding

<img [src]="imageUrl" alt="Image description">

Event Binding

<button (click)="handleClick()">Click me</button>

Directives

Directives are special markers in the DOM that tell Angular to do something with the DOM elements. There are three types of directives:

Structural Directives

Structural directives alter the DOM layout by adding or removing elements.

<div *ngIf="isVisible">This is conditionally visible</div>

<ul>
  <li *ngFor="let item of items">{{ item }}</li>
</ul>

Attribute Directives

Attribute directives change the appearance or behavior of an element.

<div [ngClass]="{'highlight': isHighlighted}">This div might be highlighted</div>

<div [ngStyle]="{'color': textColor}">This text has dynamic color</div>

Template Reference Variables

Template reference variables provide a way to access a DOM element or an Angular component within a template:

<input #myInput type="text">
<button (click)="logValue(myInput.value)">Log Value</button>

Conclusion

Angular templates are powerful tools for defining the structure and behavior of your component's views. By leveraging data binding, directives, and template reference variables, you can create dynamic and interactive user interfaces in your Angular applications. Happy coding!