- The let keyword
- The const keyword
- Arrow Functions
- The ... Operator
- For/of
- Map Objects
- Set Objects
- Classes
- Promises
- Symbol
- Default Parameters
- Function Rest Parameter
- String.includes()
- String.startsWith()
- String.endsWith()
- Array.from()
- Array keys()
- Array find()
- Array findIndex()
- New Math Methods
- New Number Properties
- New Number Methods
- New Global Methods
- Object entries
- JavaScript Modules