5 Ways To Use Angular Template Html String

Angular is a popular JavaScript framework used for building complex web applications. One of its key features is the ability to use template HTML strings to define the user interface of a component. In this article, we will explore five ways to use Angular template HTML strings, including their benefits and practical examples.

Why Use Template HTML Strings in Angular?

Before diving into the different ways to use template HTML strings, let's first discuss why they are useful in Angular development. Template HTML strings provide a way to define the HTML template of a component in a string format, which can be useful in a variety of scenarios, such as:

• Dynamically generating HTML templates based on user input or data
• Creating reusable components with customizable templates
• Simplifying the development process by allowing developers to focus on the template without worrying about the underlying HTML structure

Method 1: Using the template Property

The most common way to use an Angular template HTML string is by assigning it to the template property of a component.

For example:

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

@Component({
  selector: 'app-example',
  template: '
Hello, {{ name }}!
'
})
export class ExampleComponent {
  name = 'World';
}

In this example, the template property is used to define a simple HTML template that displays a heading with a greeting message.

Method 2: Using the templateUrl Property

Another way to use an Angular template HTML string is by assigning it to the templateUrl property of a component. This property allows you to specify the URL of an external HTML file that contains the template.

For example:

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

@Component({
  selector: 'app-example',
  templateUrl: './example.component.html'
})
export class ExampleComponent {
  name = 'World';
}

In this example, the templateUrl property is used to specify the URL of an external HTML file that contains the template.

Method 3: Using the innerHTML Property

The innerHTML property is a way to dynamically set the HTML content of an element using a template HTML string.

For example:

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

@Component({
  selector: 'app-example',
  template: '
'
})
export class ExampleComponent {
  name = 'World';

  ngAfterViewInit() {
    const container = document.getElementById('container');
    container.innerHTML = `
Hello, ${this.name}!
`;
  }
}

In this example, the innerHTML property is used to dynamically set the HTML content of a div element using a template HTML string.

Method 4: Using the DomSanitizer

The DomSanitizer is a service provided by Angular that allows you to sanitize HTML strings to prevent XSS attacks.

For example:

import { Component } from '@angular/core';
import { DomSanitizer } from '@angular/platform-browser';

@Component({
  selector: 'app-example',
  template: '
'
})
export class ExampleComponent {
  name = 'World';

  constructor(private sanitizer: DomSanitizer) {}

  get trustedHtml() {
    return this.sanitizer.bypassSecurityTrustHtml(`
Hello, ${this.name}!
`);
  }
}

In this example, the DomSanitizer is used to sanitize an HTML string before assigning it to the innerHTML property of an element.

Method 5: Using a Template Engine

A template engine is a library that allows you to define templates using a simplified syntax. Angular provides support for several template engines, including Handlebars and Mustache.

For example:

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

@Component({
  selector: 'app-example',
  template: '{{ name }}'
})
export class ExampleComponent {
  name = 'World';

  constructor(private templateEngine: HandlebarsTemplateEngine) {}

  ngAfterViewInit() {
    const template = this.templateEngine.compile(this.template);
    const html = template(this);
    document.getElementById('container').innerHTML = html;
  }
}

In this example, the Handlebars template engine is used to compile a template and render it to an HTML string.

Gallery of Angular Templates

Angular Template Gallery

We hope this article has provided you with a comprehensive understanding of the different ways to use Angular template HTML strings. Whether you're building a complex web application or a simple web page, Angular templates provide a powerful way to define the user interface of your application.

We'd love to hear from you! Have you used Angular templates in your web development projects? Share your experiences and tips in the comments below.