what are the steps used in this code to calculate the Fibonacci sequence?

Question

let a = 0;
let b = 1;
for (let i = 1; i <= 10; i++) {
let c = a + b;
a = b;
b = c;
console.log(c);
}

So I have this little code that apparently works and that gives the sequence of Fibonacci but I still don't understand how the code does its thing.

Answer 1

at each iteration, the variable b takes the value of the sum of a and b, and is also displayed on the screen. the variable a takes the value b, so after each iteration the variables a and b will take the values ​​(0,1) -> (1, 0+1) -> (1, 1+1) -> (2, 1+2) -> (3, 2+3) and so on