The Ultimate Guide to Rust Programming/

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Almost Correct: Assignment

Almost Correct: Assignment

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A let statement defines a new variable. What if we did the same let keep_going = false;, but without the let? In other words, what if our program looks like this:

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Rust 1.40.0
fn main() {
    let keep_going = true;
    while keep_going {
        println!("Inside the while loop");
        keep_going = false;
    }
}

This is close, but no cigar. Rust complains with the following error message:

error[E0384]:
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