Widely Available
Maps
id: array-group
Array grouping
The
Object.groupBy() and Map.groupBy() static methods group values of arrays and iterables based on a function that returns a key for each value.
Baseline Status:
Achieved Widely Available on Sep 5, 2026 (Cross-browser Newly Available since Mar 5, 2024).
Desktop Browser Engine Support
Google Chrome
117
Supported
Mozilla Firefox
119
Supported
Apple Safari
17.4
Supported
Microsoft Edge
117
Supported
Mobile Browser Engine Support
Chrome Android
117
Firefox Android
119
Safari iOS
17.4
Specifications and References
MDN Browser Compat Data Keys: