Rust for JS Devs — Part 2
In this episode of Syntax, Wes and Scott jump into part 2 of their look at Rust for JavaScript developers, including variables in Rust, type systems in Rust, signed and unsigned integers, and more.
Show Notes
- 00:10 Welcome
- 00:43 Audio issue bugs
- 03:17 Building decks
- 06:06 Variables in Rust
- Syntax 647: Rust for JavaScript Developers - Node vs Rust Concepts
let x = 5; // x is immutable let mut x = 5; // x is mutable const MAX_POINTS: u32 = 100_000; // must be defined at compile time - 10:42 Type System in Rust
- 15:52 Types in Rust
- 19:06 Why does Rust have signed and unsigned integers?
- 23:35 Slicing strings with &str
- 27:35 enum
- 27:55 struct
- 28:19 Vec
- 29:33 HashMap and HashSet
- 33:00 Converting Signed to Unsigned Numbers
let unsigned_value: u8 = 200; let signed_value: i8 = unsigned_value as i8; struct User { username: String, email: String, sign_in_count: u64, active: bool, } // You can create an instance of a struct like this: let user1 = User { email: String::from("someone@example.com"), username: String::from("someusername123"), active: true, sign_in_count: 1, }; impl User { fn login(&mut self) { self.login_count += 1; } } - 49:17 SIIIIICK ××× PIIIICKS ×××
××× SIIIIICK ××× PIIIICKS ×××
- Scott: Thermacell Patio Shield
- Wes: Magnet Phone Mount
Shameless Plugs
- Scott: Sentry
- Wes: Wes Bos Tutorials
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