Change detection is one of the core feature of every framework. This feature is responsible for updating the DOM when the state of the app changes.
Most of the time change detection is a performance sensitive matter and knowing in details how it works will help you get the best out of it.
With the rise of Signals and recent work toward the official support of Zoneless app, let's have a look at the current state of Change Detection in Angular and how the road is paved toward zoneless apps !