Angular 9 Moves To Ivy
Written by Kay Ewbank   
Monday, 10 February 2020

Angular 9 has been released with improvements to the framework, Angular Material, and the CLI. This release also moves over to the Ivy compiler and runtime by default, and introduces improved ways of testing components.

Angular is a is a TypeScript-based web application framework. It is open source, and can be used for building JavaScript apps and dynamic web pages. It has gained widespread support partially because it's a good framework, and partially because of the work on its development by a team at Google.

angular

The headline change to version 9 is the adoption of the Ivy compiler and runtime as the default. This should result in smaller bundle sizes, faster testing and better debugging, along with improvements to CSS class and style binding and type checking. Build times are also improved.  The smaller bundle sizes are achieved by Ivy removing parts of Angular that aren’t being used via tree-shaking, and generating less code for each Angular component.

The move to Ivy adds new tools for debugging applications. When running an application in Dev Mode with the Ivy runtime, you get a new ng object for debugging that exposes a set of functions in the global namespace which are useful for debugging the current state of your application. You can also now ask Angular for access to instances of your components and directives, and manually call methods and update state.

CSS handling is another area that's been improved. In earlier releases, if an application contained competing definitions for a style, those styles would destructively replace each other. With Ivy, the styles are merged in a predictable way.

Type checking is another area to have been improved. The Angular compiler can now check more types and can apply more strict rules. This should help developers catch bugs earlier in the development process. Angular 9 is available for download from the Angular site. 

 

angular

More Information

Angular Site

Related Articles

Angular 8 Adds Default Differential Loading  

Angular Jumps To Version 4  

Angular 2.0.0 Launched 

AngularJS 2.0 Is Radically Different

 

 

To be informed about new articles on I Programmer, sign up for our weekly newsletter, subscribe to the RSS feed and follow us on, Twitter, Facebook or Linkedin.

Banner


D3.JS 6 Adds Iterable Support
01/09/2020

There's a new version of D3.js, the JavaScript library for manipulating documents based on data. Improvements in D3 v6 include a move to using native collections (Map and Set), as well as the abi [ ... ]



Google Launches App Modernization Program
01/09/2020

Google has introduced Google Cloud App Modernization Program (Google CAMP) based on Google's "experience of driving application delivery at speed and scale".


More News

graphics

 



 

Comments




or email your comment to: comments@i-programmer.info

Last Updated ( Monday, 10 February 2020 )