else Expressions

The value of a condition in an if expression must be either true or false. If the condition's value is true the code block gets executed. If the condition is false it doesn't.

Executing an alternate code block when an if condition is false is done with an else expression.

This example sets up an if statements that runs if 5 is less than 4. We'll follow it with an else expression that will get run since evaluating 5 < 4 is false

The output will be:

5 is not less than 4

SOURCE CODE

fn main() {

  if 5 < 4 {
    println!("5 is less than 4");
  } else {
    println!("5 is not less than 4");
  }

}

CODE RUNNER

Typos: 0
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