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JavaScript Angular Basics Setting Up an Angular Application Your First Angular Application

Posted by Shyam Gupta
Shyam Gupta
7,757 Points

What does "post processing" mean?

@07:32 it's mentioned that when we apply a declarator to a class, function or property, we are "post processing" it. What does it mean?

1 Answer

Ari Misha
Ari Misha
19,323 Points
Ari Misha
Ari Misha
19,323 Points

Hiya there! Angular is a complete and a powerful framework , backed by Google and a bunch of individual developers all around the globe. The core Angular pretty much works with HOF(Higher Order Functions). Now what the heck is HOC? In simple words, Higher Order Functions are function that ma or may not take in another function as a parameter but returns another function. Thats how decorators work as well. In order make a class a component in Angular, we use @Component decorator , which ships with Angular core. Now what is a decorator? Decorator is HOF , which adds metadata to a class or method. It decorates the class. Angular ships with many decorators and directives. So yeah when TypeScript and webpack compiles all the assets and files, Angular reads the decorator metadata first , and then do what its told in the decorator. MetaData means information about the data. So yeah metadata are pretty much instructions. I hope it painted a bigger picture in your mind about how angular works behind the scene.

~ Ari