Angular elements Tutorials | web components examples
Angular is a framework for building SPA and hybrid applications.
with Angular, You can create Angular components, Which you can use only in the Angular application Each component you created in the angular application is a straightforward way to use it.
Suppose, How to use the
Angular component in nonangular applications like any Java frontend or PHP or ruby on rails application.
It is possible by using Angular custom elements and web components.
Angular elements are introduced from the Angular 6 version onwards.
What are Angular custom web elements?
Angular elements are normal angular components also called web components, that are packaged and shipped as minified versions to use in other applications
Custom elements are like normal HTML or DOM elements that wrap the entire functionality in a single element.
Angular elements are custom components that build as mini
These are also called Angular web components.
Angular custom web elements are a simple way of using the minified angular version in any web application.
Angular provides the
@angular/elements package to make custom web components elements
For example, Angular custom elements can be used as follows
why angular elements
There are many advantages of using angular elements
- Angular elements are nothing but components, So can be packaged and used in non-angular applications.
- These are reusable, develop a single component and reuse it in multiple applications independently.
- You can add angular elements to server-side code
- You can still use angular elements in angular applications
Create an Angular project with the angular 12 version
First, check whether angular CLI is installed or not, If not installed, install the latest angular CLI using the below command.
npm install -g @angular/cli
First Create an angular application using the ng new command.
ng new angular-elements-example
This creates an initial angular application structure and installs dependencies as seen below
How to build elements
Here is a command to run build angular elements
npm run build:elements
Sharing data between
data can be passed between each element using @input and @output tags like angular components.
As angular elements are used inside parent components or of different container
It supports all browsers natively.
angular element Errors
When you are working on angular elements, You will get errors.
Cannot find module ‘@angular/elements’ : error
This error throws accessing elements code without installing the @angular/elements package in your application.
The solution, install
@angular/elements using the npm install command
npm install @angular/elements
This will install the latest @angular/elements in your application.
Difference between Angular elements with Stencil.js
StencilJs is also used to create web components.
Let’s see the difference between angular elements with StencilJs
|It is built by the Angular team from Google||It is built by the team behind the Ionic framework|
|Angular elements are used to create web components||StencilJS is also used to create web components with all features|
|Output of bundled with this is more||Size is less for bundled size compared with elements|
|It uses Angular framework with typescript||Uses React framework with typescript programming language|
|Minification of angular framework||Very fast and lightweight|