Object++
The Object type, or the javascript equivalent of the python dictionary. A living contradiction since almost all js types, built-in classes, and custom classes inherit from this type, yet it supposed to represent a basic hashmap in the javascript - the resident key-value pair array.
Unfortunately, it does a very awful job being a key-value data type as it's missing key crucial dictionary operation common in other languages. Simple methods like copying, removing a list of keys, merging and basic comparison operators are poorly implemented.
No need to worry, prototype++ is here to anwer your prayers!!!