Language features

• Structure and Grammar
• Variables and bindings
• Operators
• Conditionals
• Loops
• Error handling
• Types

• Numbers and Math
• Strings
• Objects
• JSON
• Functions
• Arrays
• Classes

• Prototypes
• Scopes
• Modules
• Async/Await

Links

• ES6 language features
• ES8 language features
• Proposals for changes to the language
• ES6 Forum
• Language basics article