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[BrianGenisio]

• [ ] Promises
• [ ] Object Literals
• [ ] Modules
• [ ] Module loaders
• [ ] Maps and Sets
• [ ] Weak maps and sets ( harder to simulate )
• [ ] Generators
• [ ] Iterators
• [ ] For-of
• [ ] Two-Way Iterators
• [ ] Coroutines
• [ ] Proxies
• [ ] Rest Parameters
• [ ] Spread Parameters
• [ ] String Methods
• [ ] Array Methods
• [ ] Object, Math, Number
• [ ] Symbols
• [ ] Subclassing builtins
• [ ] Unicode
• [ ] Binary and octal
• [ ] Reflect API
• [ ] Tail Calls

ES7 stuff later (needs ES7 section)

• [ ] Comprehensions