You may be overlooking some key points.
Frameworks like Angular serve a greater purpose than simply managing tab switches or displaying parts of the user interface instead of the whole thing. While you can certainly build basic single-page applications using this approach, it becomes impractical for larger, real-world projects. Here's why:
- Your website will become difficult to maintain
- Angular and similar frameworks offer more than just templating functionality; they also provide features like routing, which allows content to be loaded on demand. This means that instead of loading entire pages that users may not view, only specific HTML fragments are fetched as needed, reducing network traffic. Consider having to download all content (posts, images, videos, chat messages) on Facebook at once and then hiding them until requested.
Templating is another powerful aspect of these frameworks. Even for simple apps, manually concatenating strings to create HTML fragments and inserting them into the DOM is inefficient. For instance, envision having to write custom JavaScript code to assemble chat messages in an application like Facebook before injecting them into the DOM. With Angular 2, you can use a syntax like this:
<ul>
<li *ngFor="let msg of messages">{{msg.Sender}} said: {{msg.Content}}</li>
</ul>
Here, Angular 2 handles parsing and DOM manipulation tasks for you, enabling declarative markup rather than imperative logic for presentation purposes.
In essence, these frameworks help separate business logic from presentation, making it worthwhile to explore their capabilities when developing feature-rich applications. You won't regret diving deeper into any of the popular frameworks available.