8-fibonacciWhileLoop.js

//fibonacci series using foor loop
//fibonacci series=  0 1 1 2 3 5 8 13 21 34 55 89....


//fibo[2] = fibo[2 - 1] + fibo[2 - 2];
//fibo[3] = fibo[3 - 1] + fibo[3 - 2];
//fibo[4] = fibo[4 - 1] + fibo[4 - 2];
//fibo[5] = fibo[5 - 1] + fibo[5 - 2];
//fibo[n] = fibo[n - 1] + fibo[n - 2];
//fibo[i] = fibo[i - 1] + fibo[i - 2];


//fibonacci series using while loop
function fibonacci1(n) {
    let i, fibo;
    fibo = [0, 1];
    i = 2;
    while (i <= n) {
        fibo[i] = fibo[i - 1] + fibo[i - 2];
        i++;
    }
    return fibo;
}

console.log(fibonacci1(10));