challenge-algorithms-v2.0-wellington-duarte-santos/04-fibonacci/index.js

export function fibonacci(value) {
  var a = 0, b = 1;

  if(value === 0){
    return a;
  }
  
  for (var i = 2; i <= value; ++i) {
      var temp = a;
      a = b;
      b += temp;
  }
  
  return b;
  
}