Rust HashMap and HashSet Collection Types 🦀

[@TrevorSullivan]

Check out the full Rust playlist for more Rust programming videos! 🦀 ➡➡➡➡ kzbin.info/aero/PLDbRgZ0OOEpUkWDGqp91ODn0dk7LPBAUL

[@fabricehategekimana5350]

I am very grateful for the work you do! The quality and resources are great. God bless you

[@TrevorSullivan]

You are very kind. Thank you so much for your support. God bless you and keep you as well. ✝️

[@shreyansh_shrivastva]

Thanks for the tutorial. However in stock_list.remove you didnt need to convert it to string and then pass the pointer as doing just "text" returns you a pointer. So thats an unnecessary step as far I understand.

[@shailendrajadhav8603]

Thank you for creating this playlist; these are easy to understand examples. Would you consider creating a real world application using all these concepts?

[@TrevorSullivan]

Thank you! Yes, I would certainly consider creating a full application. I'm focusing on the core concepts of Rust for now, but once we cover most of those, I'll create some practical Rust applications! Rust on! 🦀🦀

[@MH-bw9lh]

Hi Sullivan, when removing the "AAPL".to_string() from the stock list, why a & is needed ?🤔

[@TrevorSullivan]

That's an excellent question. I believe the simplest answer is that the .remove() method signature requires a borrow of the underlying key type. In this case, my HashMap key was of type String, so in order to satisfy the method signature, I had to use &String. That is essentially what the documentation says here doc.rust-lang.org/stable/std/collections/struct.HashMap.html#method.remove

[@ojoawojoshua780]

Pls can you create how to build a full backend system in rust and also how to build a smart contract more like DAPPs etcs in rust.

[@oladapooyin1238]

Thank you Trevor!