As per usual, we’ll create a simple “Hello World” style app to create our first program in Rust. While you can download and install a Rust compiler on your machine, for our examples, we will use an online editor: https://www.onlinegdb.com/online_rust_compiler Rust requires a main function, like many other languages (C/C++, Java, etc) however, there are…
So far we’ve looked at void functions, or function which execute, and exit – without returning something to the calling program/function. We’ve even looked at passing values to a function, but we often want to return a value from a function. A value-returning function will return a value back to the calling location. Think of…
Now a function can read a variable from the main program inside a function, but it cannot write to that variable. This can cause some confusion, and rightly so. So lets not do that. Instead, we can change how a function behaves by passing values to a function. These values are called parameters. An argument…
