@jtq/set-compare

    1.0.0 • Public • Published

    Common set-theory comparisons and operators

    The Set API in javascript is currently rather impoverished, with the ability to define sets but little in the way of common set-theory operations or comparisons we can easily perform on them.

    This module exposes a number of useful set-theory operations and comparisons:

    • union(a, b): Return everything in set A or B
    • intersection(a, b): Return everything in set A and B
    • difference(a, b): Subtract from set A everything in B
    • disjunctiveUnion(a, b): Return everything in set A xor B (everything in set A or B but not both)
    • equal(a, b): Returns true if two sets are equal (sets have no concept of ordering, to this relies purely on the presence/absence of values, not their order)
    • isSubsetOf(a, b): Returns true if A is a subset of B (equal sets are subsets of each other)
    • isStrictSubsetOf(a, b): Returns true if A is a strict subset of B (equal sets are not strict subsets of each other)
    • isSupersetOf(a, b): Returns true if A is a superset of B (equal sets are supersets of each other)
    • isStrictSupersetOf(a, b): Returns true if A is a strict superset of B (equal sets are not strict supersets of each other)

    Install

    npm i @jtq/set-compare

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    Version

    1.0.0

    License

    ISC

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    8.87 kB

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    4

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