Thread by @nickbulljs

In 2021 we will see a new version of JavaScript.

🔥 ES 12 🔥

Almost all the features are useful.

But three of them stood out from the pack.

Here they are👇👇👇

1. Logical Assignment Operator

The logical assignment operator combines logical operations (like ??, &&, or ||) with an assignment (e.g. =)

Some examples 👇

a ||= b returns a if a is truthy or b if a is falsy.

a &&= b returns b if a is truthy or a if a is falsy.

a ??= b returns b if a is null or undefined, or it returns a if a is truthy.

2. Promise.any

Promise.any accepts an array of promises and resolves as soon as any of the supplied promises become resolved.

Sounds difficult, so here is an example 👇

If all promises were rejected, Promise.any throws a new type of error: AggregateError.

What’s new about it is the AggregateError object represents an error where several errors are wrapped in a single error.

Here's how it works 👇

3. Numeric Separators

Numeric separators give us the ability to separate thousands with an underscore (`_`) in numeric literals.

How is it useful?

It makes our code more informative and readable.

Example 👇

Thanks for reading!

If you want to try these three new features of ES2021 right now, you can use Babel plug-ins.

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