Numbers: Underscores in numbers

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TIL you can add underscores in the middle of any number in JavaScript, to improve its readability according to what the number means to you:

1_000 //1000
2_3_4 //234

It’s a relatively new feature (since ECMAScript 2021), but supported by all major browsers for years.

0:	Introduction
1:	Number Basics
2:	Number Validation
3:	Parsing Numbers
4:	Formatting Numbers
5:	Number Recipes
6:	The Binary Number System
7:	▶︎ Underscores in numbers
8:	The Decimal Number System
9:	Converting Numbers from Decimal to Binary