fibonacciForConsole.js

// for loop
function fibFor() {
    var a = 0, b = 1, i = 1, result;
    result = b;
    console.log(a + '\n' + result + '\n');
    for(i; i < 10; i++) {
        console.log(result + '\n');
        result = a + b;
        a = b;
        b = result;
    }
}

// recursive starts at 0
function fib(number) {

    if(number == 0) return 0;
    
    if(number == 1) return 1;

    return fib(number - 2) + fib(number - 1);

}

// shorter recursive starts at 1
function fibRecursive(n) {
    if(n <= 1) return 1;

    return fibRecursive(n - 2) + fibRecursive(n - 1);
}