print("Hello, world!")

let fibonacci = fn(n) {
  if (n < 2) {
    return n;
  }
  
  return fibonacci(n - 1) + fibonacci(n - 2);
}

fibonacci(10)

let linear_search = fn(arr, target) {
  let i = 0;
  while(i < len(arr)) {
    if(arr[i] == target) {
      return i;
    }
    i = i + 1;
  }
}
 
linear_search([1, 2, 3], 2);