Rust-Course-2025

In Rust, a Future is like a placeholder for a value that will be available later. It represents a task that is still running or waiting, for example, downloading data, reading a file, or making an API call, and will eventually complete with a result. In Rust, futures are a core concept of asynchronous programming. … Read more

What is Async Programming? Asynchronous (or async) programming allows writing code where multiple tasks can run independently and at the same time without waiting for each other to finish. You can see, in a normal synchronous program, that if one part of the code is waiting, then the entire program pauses until that task is … Read more

A mutex, short for Mutual Exclusion, ensures only one thread can access a piece of data at a time. In Rust, a Mutex is used to safely share data between threads without causing race conditions. This means only one thread can “lock” the data at a time, and other threads must wait until the data … Read more

In Rust, channels provide a way for threads to communicate safely and effectively. Think of a channel as a messaging system where one thread can send messages, and another thread can receive them. Channels are thread-safe, so Rust ensures that no two threads can corrupt the data while communicating. A channel in Rust works like … Read more

What Are Threads? Threads are like small, independent “workers” inside your program. Each thread can run its own piece of code at the same time as other threads. This means your program can do multiple tasks simultaneously, for example: Rust’s Thread Model In many languages, using threads can be risky because if two threads try … Read more

Concurrency in Rust means running multiple tasks at the same time in a coordinated way, not necessarily exactly at the same moment. Imagine, a chef preparing multiple dishes,: The chef is not doing everything simultaneously, but tasks happen together in progress; that’s concurrency. Rust provides safe and powerful concurrency tools like threads, channels, async/await, and … Read more

Error handling means writing code that can detect, manage, and respond to mistakes or unexpected situations without crashing your program. Rust provides two primary mechanisms for error handling: Why Is Error Handling Important? Simple example – Without Error Handling fn main() { let content = std::fs::read_to_string(“data.txt”).unwrap(); // panic if file doesn’t exist println!(“{}”, content);} Better … Read more

An iterator is a powerful tool in Rust that gives you a safe, lazy, and efficient way to access items in a sequence. In Rust, an iterator is any object that follows the Iterator trait, which means it must provide a next() method. This method is responsible for returning the next element in a sequence. … Read more

A HashMap is like a real-world dictionary where you look up a word (key) to find its meaning (value). In Rust, a HashMap stores data in key-value pairs, where each key must be unique. It is defined as: Every key is unique; you can’t have two keys that are the same. Keys and values can … Read more

A Vector in Rust is a growable array that can store multiple values of the same type. You can define it using Vec<T>, where T is the type of the elements (like i32, String, etc.). Vectors are stored on the heap, so you can add or remove elements while the program is running. You don’t … Read more