challenge-algorithms-v2.0-leonardo-pereira-rocha/04-fibonacci/index.js

export function fibonacci(value) {
  let previous = 0; 
  let sum = 0;
  let next = 1;

  for (let i = 0; i < value; i++) {
    sum = previous + next;
    previous = next;
    next = sum;
  }
  return previous;
  
}