Understanding Angular Performance

Let's see, how to write incredibly performant apps and how Angular's change detection works to improve the runtime performance of Angular apps.

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Importance of performant applications

A slow application is not a useful one. Us developers can get complacent with our powerful machines and speedy fiber connections. We forget that most of the world connects through a phone, on a connection no better than 3G. Speed matters even more than ever. According to studies, 47% of users leave a page if it takes longer than 2 seconds to render.

In this section, you’ll learn how to profile an Angular application and use observables to skip large swaths of unneeded performance issues.

Understanding Angular performance

There are two types of performance to think about when digging through any frontend application: load and runtime.

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