For Loops

Rust has for loops which allow us to run the same block of code multiple times.

The formula for a for loop that runs through a range of numbers is:

  1. The for keyword
  2. A variable name to hold the value of the number on each loop
  3. The in keyword
  4. The range of numbers
  5. The code block to run each time though the loop

The range has the format of:

  1. The starting number
  2. Two dots followed by an equal sign (i.e. ..=)
  3. The ending number

For example:

1..=5

And here's a full example that outputs:

alfa is 1
alfa is 2
alfa is 3
alfa is 4
alfa is 5

SOURCE CODE

fn main() {
  for alfa in 1..=5 {
    println!("alfa is {alfa}");
  }
}

CODE RUNNER

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