What is IVY in Angular ?

IVY, or the Angular Incremental DOM compiler, is a new compilation and rendering pipeline for Angular applications. It was introduced in Angular version 9 and has since become the default renderer for Angular applications.

The main goal of IVY is to improve the performance, size, and speed of Angular applications. It accomplishes this by using a technique called “Incremental DOM” which updates only the parts of the DOM (Document Object Model) that have changed, instead of re-rendering the entire template every time there is a change in the data. This leads to faster and more efficient updates, which results in improved application performance and reduced memory usage.

IVY also makes it easier to develop and maintain Angular applications by providing better debugging capabilities, improved type checking, and faster build times. The Angular team has also made a number of other improvements with IVY, such as reducing the size of generated code, improving the performance of change detection, and simplifying the creation of reusable components.

One of the key benefits of IVY is that it allows Angular applications to start up faster, providing users with a smoother and more responsive experience. Additionally, IVY generates smaller and more efficient code, which can help reduce resource costs for developers and reduce the size of applications that are delivered to users.

Overall, IVY is a major improvement to the Angular framework and offers numerous benefits to both developers and users. It provides a faster, more efficient, and easier-to-use solution for building Angular applications, making it easier to develop, maintain, and improve applications over time.