code: function identical(obj1, obj2) {
          if (obj1 === obj2 || (isNaN(obj1) && isNaN(obj2))) {
              return obj1 !== 0 || isNegZero(obj1) === isNegZero(obj2);
          }
      }
docs: @name samsam.equal
  @param Object obj1
  @param Object obj2
  
  Returns ``true`` if two objects are strictly equal. Compared to
  ``===`` there are two exceptions:
  
  - NaN is considered equal to NaN
  - -0 and +0 are not considered equal