Description #
Rust is a systems programming language focused on performance, memory safety, and concurrency — without a garbage collector. It empowers developers to build reliable and efficient software, from operating systems to web apps, with confidence and minimal runtime errors.
History #
Rust was started as a personal project by Graydon Hoare in 2006, and it was later sponsored and developed by Mozilla. The first stable release, Rust 1.0, launched in 2015.
Rust quickly gained traction due to its ability to prevent common bugs at compile time, such as null pointer dereferencing and data races. It has topped the Stack Overflow “Most Loved Language” survey for multiple years and has become a go-to choice for developers building safety-critical and performance-intensive software.
Key adopters include Mozilla, Dropbox, Cloudflare, Amazon, and Microsoft.
Hello World Code #
fn main() {
println!("Hello, World!");
}How to Run #
Install Rust using rustup
Save the code in a file named main.rs
Compile and run with:
rustc main.rs && ./main📝 On Windows, run main.exe instead of ./main
Key Concepts #
fn main() — defines the program’s entry point
println!() — macro that prints output with a newline
Statically typed — variable types are inferred or declared
Memory safety without garbage collection
Ownership model — controls memory access
Borrowing and lifetimes — prevent dangling references
Pattern matching — used heavily with match expressions
Crates — modular package system
Compiled to native code — high performance
Thread-safe by design — encourages safe concurrency
Try It Online #
🔗 Rust Playground
🔗 Replit – Rust
🔗 WasmFiddle (for WebAssembly)
Fun Facts #
Rust was named after a fungus (seriously!)
It has been voted the “Most Loved Language” on Stack Overflow every year since 2016
Rust compiles to WebAssembly, enabling high-performance browser apps
It powers parts of Firefox, Cloudflare Workers, and AWS Lambda
Rust’s mascot is Ferris the crab, a friendly, unofficial symbol of the language
