if Expressions

if expressions are used to determine if a section of code should be run or not. They are created with:

  1. The if keyword
  2. A condition to check
  3. A block of code to run if the condition is true.

The condition in the example below checks to see if the number 3 is less than the number 4 using the < math symbol like this:

3 < 4

Since the 3 is less than 4 the condition is true so we'll see the output the condition is true.

SOURCE CODE

fn main() {
  if 3 < 4 {
    println!("the condition is true");
  }
}

CODE RUNNER

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