Introduction

This list is not meant to provide a comprehensive overview of JavaScript features. Instead, it highlights ES6+ features that are worth paying attention to, along with a few additional language features I’ve found particularly useful, though they may not be widely adopted.

Index

1. Modules
2. “let“
3. “const“
4. Nullish coalescing operator – ( ?? )
5. Optional chaining – ( ?. )
6. Logical OR assignment – (||=)
7. Destructing assignment
8. Arrow functions
9. for of loop
10. for wait of
11. Set object
12. Classes
13. Promises
14. Async functions
15. Default parameters
16. Spread operator
17. String methods
18. Array methods
19. Working with objects / dictionaries
20. Object.entries
21. Object.freeze
22. Object.groupBy
23. Function.call