Fibonacci sequence printed

fibonacci.js

// Example sequence: 1 1 2 3 5 8 13 21 34 55 89 144 233 377 610...
 
// Get Fibonacci sequence with a loop
var looping = function (n) {
  'use strict';
  var a = 0, b = 1, f = 1;
  for (var i = 2; i <= n; i++) {
    f = a + b;
    a = b;
    b = f;
  }
  return f;
};
 
// Get Fibonacci sequence with recursion
var recursive = function (n) {
  'use strict';
  if (n <= 2) {
    return 1;
  } else {
    return this.recursive(n - 1) + this.recursive(n - 2);
  }
};
 
//recursive(4) + recursive(3)
//(recursive(3) + recursive(2)) + (recursive(2) + recursive(1))
//((recursive(2) + recursive(1)) + 1) + (1 + 1)
//((1 + 1) + 1) + (1 + 1)
//5