![Rust Denver
##[derive(Debug, Serialize, Deserialize)]
pub struct APIResponse {
pub date: DateResponse,
pub games: Vec<GameResponse>,
pub errors: Option<HashMap<String, serde_json:::Value>>>,
}
##[derive(Debug, Serialize, Deserialize)]
pub struct DateResponse {
pub raw: Option<String>,
pub pretty: String,
}
What I’ve done](https://image.slidesharecdn.com/learning-rust-denver-210617213531/85/Learning-Rust-experiences-from-a-Python-Javascript-developer-13-320.jpg)
![Rust Denver
##[derive(Debug, Serialize, Deserialize)]
pub struct APIResponse {
pub date: {
pub raw: Option<String>,
pub pretty: String,
},
pub games: Vec<GameResponse>,
pub errors: Option<HashMap<String, serde_json:::Value>>>,
}
What I’d like to do](https://image.slidesharecdn.com/learning-rust-denver-210617213531/85/Learning-Rust-experiences-from-a-Python-Javascript-developer-14-320.jpg)
Learning Rust - experiences from a Python/Javascript developer
- 1. Learning Rust experiences from a Python/Javascript developer Rust Denver
- 2. “The value of another’s experience is to give us hope, not to tell us how or whether to proceed” Rust Denver “The Answer to How is Yes” by Peter Block
- 3. Rust Denver Hi, I’m Juhis! from Helsinki, Finland 🇫🇮 (it’s 3.30 am here) Developer Advocate at Futurice I build developer communities https://hamatti.org twitter.com/hamatti
- 4. Python & Javascript Rust Denver
- 5. Dom Weldon’s talk in PyCon Estonia 2019 Rust Denver
- 6. Rust Denver
- 7. Advent of Code 2020 Rust Denver fn main() ->- io:::Result<()> { let mut buffer = String:::new(); io:::stdin().read_to_string(&mut buffer)?; let input: Vec<i32> = buffer .split('n') .filter(|inp| inp !!= &"") .map(|num| num.parse().unwrap()) .collect(); let input2: Vec<i32> = input.clone(); match find_double(input) { Some(result) =>= println!("Part 1: {}", result), None =>= panic!("Oh no!"), } match find_triplet(input2) { Some(result) =>= println!("Part 2: {}", result), None =>= panic!("Oh no!"), } Ok(()) } Advent of Code #1: Getting Started Advent of Code #2: Borrows, unwraps and lots of compiler errors Advent of Code #3: Slowing down
- 8. I started to build a CLI tool Rust Denver 235 NHL results on command line https://crates.io/crates/nhl-235
- 9. ❤ Things I really like, #1 ❤ Rust Denver Pattern Matching
- 10. Rust Denver for pair in score_iter { match pair { Both(l, r) =>= print_full(l, r), Left(l) =>= print_left(l), Right(r) =>= print_right(r), } } Pattern Matching
- 11. Rust Denver ❤ We’re getting it in Python too this year https://www.python.org/dev/peps/pep-0634/
- 12. 🙈 Things I struggle with, #1 Rust Denver Static typing (esp. when nesting custom types)
- 13. Rust Denver ##[derive(Debug, Serialize, Deserialize)] pub struct APIResponse { pub date: DateResponse, pub games: Vec<GameResponse>, pub errors: Option<HashMap<String, serde_json:::Value>>>, } ##[derive(Debug, Serialize, Deserialize)] pub struct DateResponse { pub raw: Option<String>, pub pretty: String, } What I’ve done
- 14. Rust Denver ##[derive(Debug, Serialize, Deserialize)] pub struct APIResponse { pub date: { pub raw: Option<String>, pub pretty: String, }, pub games: Vec<GameResponse>, pub errors: Option<HashMap<String, serde_json:::Value>>>, } What I’d like to do
- 15. ❤ Things I really like, #2 ❤ Rust Denver rustdoc & doctests
- 16. Rust Denver impl Person { ///// Returns a person with the name given them ///// ///// # Arguments ///// ///// * `name` - A string slice that holds the name of the person ///// ///// # Examples ///// ///// ``` ///// /// You can have rust code between fences inside the comments ///// /// If you pass ---test to `rustdoc`, it will even test it for you! ///// use doc:::Person; ///// let person = Person:::new(“Juhis"); ///// assert_eq!(person.name, String:::from(“Juhis”)); ///// ``` pub fn new(name: &str) ->- Person { Person { name: name.to_string(), } } }
- 17. 🙈 Things I struggle with, #2 Rust Denver Ownership, borrows, lifetime, references
- 18. Rust Denver The Rust Borrow Checker: A Deep Dive - Nell Shamrell-Harrington
- 19. Rust Denver
- 20. Rust Denver “The Rust compiler is very kind and I tweeted last week about how the language matters. When I'm stressed about all the red in my terminal, a kind tone of voice the compiler has definitely makes it easier to deal with.” “Advent of Code #2: Borrows, unwraps and lots of compiler errors” by me
- 21. 🙈 Things I struggle with, #3 Rust Denver Verbosity and cascade of error handling
- 22. ❤ Things I really like, #3 ❤ Rust Denver Rustaceans
- 23. Rust Denver Learning Rust A monthly blog series https://hamatti.org/blog/ #1: Pattern Matching #2: Option & Result #3: crates.io #4: Parsing JSON with strong types #5: Rustlings + new one every first Wed of the month
- 24. Rust Denver codebase Livestream on Youtube https://hamatti.org/codebase #1: Accessible forms with HTML #2: Backend with Clojure #3: PHP is awesome #4: Frontend with Web Components + new one every month
- 25. Rust Denver Thanks for having me! Time for Q&A! For more of me @hamatti in Twitter hamatti.org