Mr. Rust @code_rusty

Rust + Solana Dev in training Building daily. DM to connect. github.com/webrowse Blockchain Joined September 2024

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Mr. Rust @code_rusty

a day ago

🚀Question 205: What does this print?🦀 fn main() { let arr = [10, 20, 30]; let mut iter = arr.iter().rev(); println!("{:?}", iter.next()); println!("{:?}", iter.next()); }

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Mr. Rust @code_rusty

3 days ago

Q204🦀: fn main() { let s1 = String::from("abc"); let s2 = String::from("defg"); let t = { let r1 = s1.as_str(); let r2 = s2.as_str(); if r1.len() > r2.len() { r1 } else { r2 } }; println!("{}", t); }

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Mr. Rust @code_rusty

3 days ago

🚀 Question 203: What is the output? 🦀 fn main() { let s1 = String::from("hi"); let s2 = String::from("rust"); let r: &str; { r = if s1.len() > s2.len() { &s1 } else { &s2 }; } println!("{}", r); }

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Mr. Rust @code_rusty

2 weeks ago

Q: 202🦀 fn main() { let v = vec![1, 2, 3]; let mut iter = v.into_iter(); println!("{:?}", iter.next()); println!("{:?}", iter.next()); println!("{:?}", iter.next()); println!("{:?}", iter.next()); }

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Mr. Rust @code_rusty

4 weeks ago

🚀 Question 201: What does this program print? 🦀 fn main() { let mut s = String::from("rust"); { let r = &mut s; r.push_str("ace"); } println!("{}", s); }

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Mr. Rust @code_rusty

4 weeks ago

Rust macros are black magic wrapped in curly braces.

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Mr. Rust @code_rusty

4 weeks ago

🚀 Question 200: What will this print? 🦀 ```rust fn main() { let v = vec![1, 2, 3]; let iter = v.iter(); drop(v); for x in iter { println!("{}", x); } } ```

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Mr. Rust @code_rusty

4 weeks ago

Web3 in JavaScript: “ship fast, break things.” Web3 in Rust: “ship once, pray never.”

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🚀 Question 199: In Rust, what happens when your landlord sells the house? Do you still get to be the tenant? 🦀 ```rust fn main() { let s1 = String::from("hi"); let s2 = &s1; let s3 = s1; println!("{}", s2); } ```

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Mr. Rust @code_rusty

4 weeks ago

“Why Rust?” Because I like safety… and also pain.

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Mr. Rust @code_rusty

a month ago

🚀Question 198: What is the output?🦀 fn main() { let data = vec!["a", "bb", "ccc"]; let max = data.iter() .max_by_key ( |s| s.len () ) .unwrap (); println!("{}", max); }