Variables - Origian with types

This is the first version of the Variables page that included type defintions. Moving to a version that doesn't have that for now to see how it works

Keeping this here for reference.

Variables in Rust are created using the following structure:

  1. The let keyword
  2. A name for the variable (e.g. alfa)
  3. A : that acts as a separator
  4. A data type
  5. The = sign
  6. The value to bind to it (e.g. 7)
  7. A ; the ends the definition

The data type from item 4 tells rust what kind of content the variable can hold. For example, it might be a number, or a letter, or full sentence. We'll dig into data types in the next chapter. We'll use i32 (which stands for a number) until we get there.

Putting it all together we get this:

let alfa: i32 = 7;

Using that line in we can create a full program that defines the alfa variable then prints it out.

SOURCE CODE

fn main() {

  let alfa: i32 = 7;

  println!("The value is {}", alfa);

}

CODE RUNNER