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comprehensive-rust/src/control-flow/while-expressions.md
2022-12-21 16:38:28 +01:00

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# `while` expressions
The `while` keyword works very similar to other languages:
```rust,editable
fn main() {
let mut x = 10;
while x != 1 {
x = if x % 2 == 0 {
x / 2
} else {
3 * x + 1
};
}
println!("Final x: {x}");
}
```