while loop in Rust

* While. The while loop executes the instructions each time the condition specified evaluates to true
* Loop. The loop is a while(true) indefinite loop
<pre><code>
fn main(){
   let mut x = 0;
   while x < 10{
      x+=1;
      println!("inside loop x value is {}",x);
   }
   println!("outside loop x value is {}",x);
}
</code></pre>