RUST

What is Concurrency? Concurrency refers to executing multiple tasks or threads in overlapping time periods. It doesn’t necessarily mean parallel execution; concurrency allows threads to take turns running, which is essential for multitasking and responsive applications. Rust provides tools for both concurrent programming and parallel programming, ensuring safety by preventing common issues like data races … Read more

What is a Panic in Rust? In Rust, a panic occurs when the program encounters an unexpected situation, such as an error that cannot be recovered from. This can be due to a bug, invalid data, or logic errors that cause the program to stop execution unexpectedly. A panic in Rust can happen in various … Read more

What is the Rust Option Enum? The Option enum is defined as: enum Option<T> { Some(T), None,} The Option type is used when you need to handle cases where a value might be missing. It’s a safer alternative to using null values, which can lead to runtime errors like null pointer exceptions in other languages. … Read more

What is the Rust Result Enum? The Result enum is defined as: enum Result<T, E> { Ok(T), Err(E),} The Result enum is used to return and propagate errors in Rust. It makes it easy to differentiate between success and failure scenarios, forcing developers to handle errors in a controlled manner rather than ignoring them. How … Read more

Rust provides two primary mechanisms for error handling: panic for unrecoverable errors and Result/ Option enums for recoverable errors. Why Is Error Handling Important? Types of Errors in Rust 1. Recoverable Errors with Result Enum The Result enum is defined as: enum Result<T, E> { Ok(T), Err(E),} Example: Handling File Operations use std::fs::File;fn main() { … Read more

What is an Iterator in Rust? An iterator in Rust is any object that implements the Iterator trait. The Iterator trait requires the implementation of the next() method, which returns: Iterators are lazy by default, meaning they don’t perform operations until explicitly consumed. Why Use Iterators? Creating Iterators in Rust Rust provides several ways to … Read more

What is a HashMap in Rust? A HashMap is part of the std: :collections module and is represented as HashMap<K, V>, where: Each key must be unique, and values are accessed using their corresponding keys. Why Use a HashMap? Creating a HashMap To use HashMaps, you need to include the std: :collections module. 1. Using … Read more

What is a Vector in Rust? A vector is defined using the Vec<T> type, where T represents the type of elements stored. Vectors are stored in the heap, meaning their size can be adjusted dynamically during runtime. Why Use Vectors? Creating a Vector Vectors can be created in several ways: 1. Using Vec: :new This … Read more

What Are Collections in Rust? Collections are data structures that store multiple values. Unlike fixed-size arrays, collections are dynamic and can grow or shrink as needed. Rust provides several commonly used collections: Each collection is optimized for specific use cases, and selecting the right one is crucial for performance. 1. Vec<T>: The Vector The vector … Read more

What Are Crates in Rust? A crate is the smallest unit of code that the Rust compiler understands. It can be a binary (executable program) or a library (reusable code). Crates provide functionality, organization, and a way to share code across projects. Types of Crates Example: Creating a Binary Crate Initialize a New Binary Crate … Read more