Package Exports

array-set-ops
array-set-ops/index.js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (array-set-ops) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

array-set-ops

Extremely fast set and map/reduce operations for Arrays and Sets.

Set Operations For Arrays and Sets

difference(...iterables)
intersection(...iterables)
symmetricDifference(...iterables)
union(...iterables)

If the above methods are called on a Set, a Set is returned. If called on an Array, an Array of unique elements is returned

isDisjointFrom(...iterables)
isSubsetOf(...iterables)
isSupersetOf(...iterables)

The ...iterables passed as arguments can be Arrays, Sets, Maps, or custom iterables.

Loop Functions For Sets

forEach
map
reduce

Array instances returned by the set operations are also patched to be more efficient.

Installation

npm install array-set-ops

Usage

import {classPrototype,loopFunctions} from "array-set-ops";

Object.assign(Set.prototype,classPrototype);
Object.assign(Array.prototype,classPrototype);
Object.assign(Set.prototype,loopFunctions); // optional if you desire forEach, map, reduce on Sets

Note: forEach, map, reduce are highly optimized for union and are present on Set results from union even if the prototype is not patched.

Unit Testing

Unit testing is conducted with Mocha and C8.

23 passing (43ms)

-------------------------|---------|----------|---------|---------|---------------------------------------------

File	% Stmts	% Branch	% Funcs	% Lines	Uncovered Line #s
All files	92.13	84.25	82.35	92.13
difference.js	100	75	100	100	29,38
index.js	100	100	100	100
intersection.js	100	94.44	100	100	50
is-disjoint-from.js	100	100	100	100
is-subset-of.js	100	62.5	100	100	27-30,32
is-superset-of.js	100	62.5	100	100	27-30,32
loop-functions.js	100	100	100	100
symmetric-difference.js	100	100	100	100
union.js	78.12	81.39	57.14	78.12	41-47,51-57,68-73,75-76,107-108,118-127,154
-------------------------	---------	----------	---------	---------	---------------------------------------------

Change History (Reverse Chronological Order)

2023-02-18 v0.1.0 First public release