Numeric separators

To improve readability for numeric literals, underscores (_) can be used as separators. For example, 1_050.95 is equivalent to 1050.95.

Baseline Status: Achieved Widely Available on Jan 28, 2023 (Cross-browser Newly Available since Jul 28, 2020).

Desktop Browser Engine Support

Google Chrome

75

Supported

Mozilla Firefox

70

Supported

Apple Safari

13

Supported

Microsoft Edge

79

Supported

Mobile Browser Engine Support

Chrome Android

75

Firefox Android

79

Safari iOS

13

Specifications and References

MDN Browser Compat Data Keys: