fibonacci.js

function fibonacci(num){
  var a = 1, b = 0, temp;

  while (num >= 0){
    temp = a;
    a = a + b;
    b = temp;
    num--;
  }

  return b;
}

const fibonacci = (num) => {
  let increment = 1;
  let sum = 0;
  let temporary;
  
  while (num >= 0) {
    temporary = increment;
    increment = increment + sum;
    sum = temporary;
    num--;
  };
  return sum;
};

const fizzBuzz = (num) => {
  for (let i = 1; i <= num; i++) {
    if (i % 15 === 0) {
      console.log("FizzBuzz");
    } else if (i % 5 === 0) {
      console.log("Fizz");
    } else if (i % 3 === 0) {
      console.log("Buzz");
    } else {
      console.log(i);
    };
  };
};