Introduction
Angular is a client-side frontend framework maintained by Google and its typescript-based framework was used to develop a scalable and interactive user interface for web applications. The angular framework helps to develop single-page applications.
What is Angular 13?
The first framework of Angular was released in 2010 and it names AngularJS the current angular framework which is running in the industries is Angular 13 which stable to develop web applications but there are also other versions of Angular are available but they are not stable and many of developers still used Angular 8. The first release of the Angular framework is JavaScript based and then it developed and now the modern Angular framework is completely built-in TypeScript.
Features of Angular 13
The new version of Angular 13 brings new features to solve the previous problem of file sizing and also other new features introduced in the new version which help developers to build single-page web applications. Features of the latest Angular version
• Small bundle size
• Faster testing
• Better debugging
• Improved CSS
• Improved type checking
• Globalization
• Angular Components
• Improved server-side rendering
• Stable bezel
• Support the latest typescript version
The only important features are covered in this article read below for more explanation.
Problem with previous Angular versions
The previous version of Angular is dealing with one of the major problems is performance and file sizing as compared to other frontend frameworks like React, Vue, and Svelte. The major problem of the previous Angular version is the large size of the final bundle which impacts the download time and the overall performance of the application will be down.
Overcome problems with a new approach
- Unicode support for identifies in modern targets
- Improved developer experience
- Stricker type checking for generators
- Optimal operator chaining
- Top-level functions
- Assertion functions
- Recursive aliases These are the all-new features supported by Typescript 3.6 and 3.7 and its added to Angular 13.
Angular 13 Components
The Angular version 9 comes with official components for Google maps and YouTube. The clipboard services and directives were added to the CDK of Angular 13. The most amazing feature in Angular 13 is testing improvements, The load standing issue is resolved and types are improved with new concepts which are implemented in Angular 13. The Angular 13 also improves the styling components and Ivy has been revoked. The CSS custom binding properties are rewritten and now supported. Angular 13 comes with more bug fixes, deprecations, and long-standing and breaking changes.
TypeScript Support
Angular 13 added support for typescript 3.6 and 3.7 which makes it easy to use Google maps and other applications in frontend apps. Angular added IDE support and language service extension which improve the development speed and productivity of developers and also help them to find out errors while developing apps.
Ivy and Bazel
In Angular 8 Ivy is the rendering engine and Bazel is the build system. In the previous version of Angular, we had to opt-in to Ivy instead of in Angular version 9 Ivy is enabled by default. We have to opt-out of Ivy if we want to fall back to view the engine this is the new feature in Angular 13 which ensure to smooth transition from Engine to Ivy. The AOT is compiled but this is not recommended in the new Angular version.
Ivy is the default rendering engine in Angular version 9 and Bazel provides the newest features like building complete CLI applications in a small amount of time. The Angular compiler compatibility upgrade view engine compatible libraries when we installed the Angular Ivy application project Locality principle in Angular 13.
Server-side rendering with Angular Universal
During development Angular universal version was released with Node.js and express development server with realistic environment development also Angular 13 released Angular CLI builder to prerender static routing by using guess-parse. In Angular 13 we can pass route files to prerender dynamic routes which are also known as routers with parameters. Angular 13 Prerequisites
Angular prerequisite
- You need to learn the project structure and workflow of Angular
- You have to install Mongo Db in your local system
- You have to install the Node.js version after node v10 which is available on the official node website.
- To check versions of node, Mongo DB, and Angular you have to follow these commands
- To check Angular and Node use the ng –version command
- To check npm which stands for node package manager use the node -v command
- To check the Mongo DB version, use MongoDB -–version command
- To check the Mongo shell version, use the mongo –version command.
Angular Commands to get Started with Development
Here are some basic commands which help you to get started with Angular 13 and you can start with your first Angular 13 project, Let’s create a first Angular 13 project by following the command
Ng new first Angular 13: It will create all the required structures automatically and install all dependencies into your local storage system
npm install bootstrap –save: This command adds bootstrap CSS to the project
Ng server -o: This command will start the Angular development server on port no localhost:4200// and then the starting template of Angular version 9 will appear on your local system browser.
Note: Angular regularly releases new versions but the current most stable version of Angular is Angular 13 till now and Angular 14 is in testing mode.
Installation setup
The pre-requisites to start with Angular are HTML, CSS, and JavaScript, and basic fundamentals of typescript which are already mentioned in the above section.
Step to follow
- Install the Angular CLI with the following command
- npm install -g @angular/cli
- Workspace and initial setup
- ng new my-app
- Navigate to the project folder
- cd my-app
- ng serve --open
- Ng server command navigates to localhost:4200.
