Set methods
The difference(), intersection(), isDisjointFrom(), isSubsetOf(), isSupersetOf(), symmetricDifference(), and union() methods of the JavaScript Set object performs operations between two sets.
Status
Baseline Newly Available (since 2024-06-11)
This feature is expected to reach Baseline Widely Available status on: 2026-12-11
MDN documentation
Specifications
- ECMAScript® 2026 Language Specification (#sec-properties-of-the-set-prototype-object), from TC39 (Ecma International).
Browser support
- Chrome 122 Released on 2024-02-20
- Chrome Android 122 Released on 2024-02-20
- Edge 122 Released on 2024-02-23
- Firefox 127 Released on 2024-06-11
- Firefox for Android 127 Released on 2024-06-11
- Safari 17 Released on 2023-09-18
- Safari on iOS 17 Released on 2023-09-18
Developer signals
- State of JS 2024: reading_list/reading_list question
- State of JS 2024: features/set_features question
- State of JS 2024: features/object_features question
Usage (according to Chrome Platform Status)
~3.849% of page loads. More data at chromestatus.
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