Rust Conditionals

Overview

Conditional statements allow different code branches to be executed based on conditions. Rust provides conditional statements such as if, else if, and else.

🎯 if Expressions

Basic Usage

fn main() {
    let number = 3;

    if number < 5 {
        println!("condition was true");
    } else {
        println!("condition was false");
    }
}

Multiple Conditions

fn main() {
    let number = 6;

    if number % 4 == 0 {
        println!("number is divisible by 4");
    } else if number % 3 == 0 {
        println!("number is divisible by 3");
    } else if number % 2 == 0 {
        println!("number is divisible by 2");
    } else {
        println!("number is not divisible by 4, 3, or 2");
    }
}

if in let Statements

fn main() {
    let condition = true;
    let number = if condition { 5 } else { 6 };

    println!("The value of number is: {}", number);
}

📝 Chapter Summary

Conditional statements are an important part of program control flow. Mastering their usage is crucial for writing complex logic.

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