Lesson 7. How does priceFeedAddress work?

[NickoMenty]

I have a trouble understanding how does constructor() understands which and where to take the Price Feed address for our contract.

I understand that previously we manually entered the Price Feed contract. BUT we specificly choose the ETH / USD feed in Rinkbey chain.

how does adding "priceFeedAddress" into a constructor() work? Is it impleneted in the hardhat logic, that

1. priceFeedAddress means that it should go to chain.link,
2. Then reed our network from config and CTRL+F the website to find specific contract? xD

Really don't understand. If you do, please explain!

[NickoMenty]

nevermind, my question is answerd 10 minutes after in the video)
sry