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![New JavaScript Set Methods
const set1 = new Set(['wes', 'kait']);
const set2 = new Set(['wes', 'scott']);
Difference
Elements in set2 but not in set1
set2.difference(set1)
> ['scott']
Intersection
Elements that exist in both sets
set1.intersection(set2)
> ['wes']
Symmetric Difference
Elements in either set, but not both
set1.symmetricDifference(set2)
> ['kait', 'scott']
Union
All elements from both sets
set1.union(set2)
> ['wes', 'kait', 'scott']
Is Disjoint From
True if sets share no elements
set1.isDisjointFrom(set2)
> false
Is Subset Of
True if all elements are in other set
set1.isSubsetOf(set2)
> false
Is Superset Of
True if it contains all other's elements
set1.isSupersetOf(set2)
> false](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:etdjdgnly5tz5l5xdd4jq76d/bafkreifpciv7ufsmynaqjmiw63rmyybije242ep2ylqs3iarkehaz4qxzi)