`median()`

The median method returns the median value of a given key:

collect([1, 3, 3, 6, 7, 8, 9]).median();

//=> 6

collect([
  {
    foo: 1
  },
  {
    foo: 1
  },
  {
    foo: 2
  },
  {
    foo: 4
  }
]).median("foo");

//=> 1.5

# median()