Why Zoneless?

Well, isn't it clear after those pictures? …In my opinion it might look clear, but this isn't the only advantage, there are others:

— Better performance: ZoneJS uses async task as indicators for change. It doesn't directly know when and where exactly the change has happened. You can imagine that it is a system that always runs and is checking everything, everywhere with some exceptions such as OnPush strategy etc.

— Debugging: We all know the Expression Changed After Checked we've all been there. Now the stack trace and errors will be more straight forward.

— Better feeling from the app: I haven't found the right words, but it just feel better. It feel better that when you change a property with async/await or using .signal(). Then the change appears immediately in the correct spot.

— Zone.js was the reason not to develop an App in Angular: Imagine you were building a snippet that was checking user interaction. For example you wanted to calculate how many times is user performing some event such as clicking, touching or interacting with keyboard -> in such scenario your app would go crazy with Angular and you would have to have a lot of components running out of Zone and manually trigger change detection. Otherwise your app even with OnPush strategy could freeze.