Did you know you can declare number values in JavaScript with notation like 1_000_000? This is especially useful for large numbers where you might be used to seeing commas within the number to help readability (but commas themselves are invalid). It’s perhaps even more useful when declaring numbers in binary, hexadecimal, or BigInt notation.
It's time to take your JavaScript to the next level
Frontend Masters is the best place on the web to really learn JavaScript. We have a complete learning path from the biggest and best teachers in JavaScript to help you make the most out of the web's biggest language.