I am learning Actix and try creating a WebSocket service code snippets: starts server pub async fn start(addr: &str) -> std::result::Result<(), IoErro
I am trying an exercise from the end of Chapter 8 in The Rust Programming Language to translate words into pig latin. Unfortunately, I am hav
I have a Rust function that panics under some condition and I wish to write a test case to validate whether the function is panicking or not. I couldn't find an
Being fairly new to Rust, I was wondering on how to create a HashMap with a default value for a key? For example, having a default value 0 for any key inserted
I was studying the x86_64 assembly for the following function: /// Returns the greatest power of two less than or equal to `self`, or 0 otherwise. pub const fn
I'm trying to connect to FileMaker through a Rust application (don't ask me why...) - and I run into the wall of the FM ODBC driver being built against iodbc an
How to use database connection from a WebSocket handler. It is possible to use future.into_actor or ctx.spawn or actix::fut::wrap_future but that's not accurate
I'm having a problem with Rust that I strongly suspect has do with a disconnect between Cargo and VS Code. I build my Cargo project with cargo new project I ed
When I try to declare a struct inside of another struct: struct Test { struct Foo {} } The compiler complains: error: expected identifier, found keywor
I want to use a HashMap<f64, f64>, for saving the distances of a point with known x and key y to another point. f64 as value shouldn't matter here, the fo
I want to combine two reference vectors and convert them into a vector of values without consuming an iterator. Situation: Generate vectors by iterating over sp
The documentation for reqwest v0.9.18 shows the following example of posting a file: let file = fs::File::open("from_a_file.txt")?; let client = reqwest::Clien
When iterating over arguments (for example) thats the most straightforward way to skip the first N elements? eg: use std::env; fn main() { for arg in env
Given that I know ParentId and ChildId, how would I find the UserId if the hashmap is: HashMap<ParentId, HashMap<ChildId, HashMap<UserId, Foobar>>
A small Iron project calls a Command in some route and returns a Response. Here is the relevant code of the route handler function: fn convert(req: &mut Re
I'd like to capitalize the first letter of a &str. It's a simple problem and I hope for a simple solution. Intuition tells me to do something like this: le
I come from a Java background and I might have something like enum Direction { NORTH, SOUTH, EAST, WEST} and I could do something with each of the values in tur
I'll get error when compiled: 'returns value referencing data owned by the current function' here's the code: fn return_static_str(a: &'st
I am working on a Rust program where I got stuck on a problem that can be reduced to following case: struct Pair<L, R> { left: L, right: R, } // Retu
var fruits = ["Banana", "Orange", "Apple", "Mango"]; var index = fruits.indexOf("Apple"); let fruits = ["Banana", "Orange", "Apple", "Mango"]; let index = fru