proposal-set v1.0.7
ProposalSet
Install
npm install proposal-setDescription
An expanded javascript and typescript set that has all current set proposals with type information and intellisense explanations. Works in node and in the browser. Stop reinventing the wheel and start using extremely elegant, concise, and performant set operations. As a shim it will test if there's a native implementation and use that first—so this package won't become an issue in the future.
The underlying shim (es-shims) is robust and well tested but doesn't have everything grouped together in one place.
Use
import pSet from "proposal-set";
const x = new pSet([1, 2, 3]);
const y = new pSet([1, 2]);
console.log(x.difference(y));
// => Set(1) { 3 }
console.log(x.intersection(y));
// => Set(2) { 1, 2 }
console.log(x.union(y));
// => Set(3) { 1, 2, 3 }Further Information
This packages implements the following proposed Set methods using shims provided by es-shims, including:
Set.difference
Everything in A that's not in B:
Set.intersection
MDN Web Docs: Set.intersection
Items that are common between A and B.
Set.union
Combination of A and B
Set.isSubsetOf
Is everything in A also in B?
Set.isSupersetOf
MDN Web Docs: Set.isSupersetOf
Does A contain everything in B?
Set.isDisjointFrom
MDN Web Docs: Set.isDisjointFrom
Are there no common elements between the two sets?
Set.symmetricDifference
MDN Web Docs: Set.symmetricDifference
The opposite of an intersection. A new set containing everything unique to A and B in one set.
