just a test function to see how recursive generators works in ES6

Fibonacci ES6.js

function *fib(iterations=10, val1=0, val2=1) {
  if (iterations > 0) {
    let sum = val1 + val2;
    yield sum;
    yield *fib(iterations - 1, val2, sum);
  }
}

[...fib()].map((val) => console.log(val));