Everything You Need to Know about NgTemplateOutlet in Angular (2022)

NgTemplateOutlet in Angular – Everything You Have to Know (2022)

Angular is one of the most popular frameworks for building web applications. It offers a wide range of features and tools that make it easy to develop robust and maintainable applications. NgTemplateOutlet is one such feature that can be extremely useful when it comes to dynamic rendering of templates in Angular.

What is NgTemplateOutlet?

NgTemplateOutlet is a built-in directive in Angular that allows you to render a template dynamically. It provides a way to inject a template defined in your component into another part of your application. This can be particularly useful when you want to reuse the same template in different parts of your application or when you want to render different templates based on certain conditions.

How does it work?

To use NgTemplateOutlet, you first define a template in your component. This can be done using the `` tag and providing a unique template reference name using the `#` symbol. For example:

“`

This is my template!

“`

Once the template is defined, you can use the NgTemplateOutlet directive to render it in another part of your application. This is done by binding the template reference name to the `ngTemplateOutlet` input of the directive. For example:

“`

“`

In this example, the template defined with the name `myTemplate` will be rendered within the `` element. The result will be the output of the template, which in this case is a paragraph with the text “This is my template!”.

Passing context data

In addition to rendering the template, NgTemplateOutlet also allows you to pass data to the template using the `ngTemplateOutletContext` input. This can be useful when you want to customize the rendered template based on dynamic data. To pass context data, you simply bind an object to the `ngTemplateOutletContext` input. For example:

“`

“`

In this example, `myContext` is an object defined in the component that contains data to be passed to the template. Within the template, you can access this data using template variables or through the context. For example:

“`

Hello, {{ name }}!

“`

Here, the `name` variable is passed as part of the `myContext` object and is used within the template to display a personalized greeting.

Conclusion

NgTemplateOutlet is a powerful feature in Angular that allows you to dynamically render templates in your application. It provides a way to reuse templates and render them based on certain conditions. With the ability to pass context data, you can further customize the rendered template to meet specific requirements. By understanding and utilizing NgTemplateOutlet, you can enhance the flexibility and reusability of your Angular applications in 2022 and beyond.