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Web Platform Baseline Status Breakdown Total Features: 1219
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Years: All 2024 2015
Showing 2 of 2 features

2024

1 features
• March 2024
Widely Available

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.

Chrome 117
Firefox 119
Safari 17.4
Edge 117
Baseline Date: Mar 5, 2024

2015

1 features
• July 2015
Widely Available

Map objects hold key-value pairs and remember the original insertion order of the keys.

Chrome 38
Firefox 13
Safari 8
Edge 12
Baseline Date: Jul 29, 2015