NEW Practical JavaScript features in 2023

MDN Links:

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Optional_chaining

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Lexical_grammar#numeric_separators

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/async_function

https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment

New practical JavaScript features available in 2023

JavaScript 2023

A few features that can be used in many cases at this point. Examples and current support

- Optional chaining "?" operator

- Numeric separators 100_000_000_000

- async/await with fetch() For asynchronous functions that use promise-based APIs

- Array Destructuring assignment var newArray = [1, 2, ...oldArray]