@diotoborg/recusandae-non

ES Proposal spec-compliant shim for Set.prototype.isSubsetOf. Invoke its "shim" method to shim Set.prototype.isSubsetOf if it is unavailable or noncompliant.

This package implements the es-shim API interface. It works in an ES3-supported environment, and complies with the proposed spec. When shimmed, it uses es-set to shim the Set implementation itself if needed.

Most common usage:

1var assert = require('assert');
2var isSubsetOf = require('@diotoborg/recusandae-non');
3
4var set1 = new Set([1, 2]);
5var set2 = new Set([2, 3]);
6var set3 = new Set([1]);
7
8assert.equal(isSubsetOf(set1, set2), false);
9assert.equal(isSubsetOf(set2, set1), false);
10assert.equal(isSubsetOf(set3, set1), true);
11
12isSubsetOf.shim();
13
14assert.equal(set1.isSubsetOf(set2), false);
15assert.equal(set2.isSubsetOf(set1), false);
16assert.equal(set3.isSubsetOf(set1), true);

Tests

Simply clone the repo, npm install, and run npm test

Set Method Packages

• union
• intersection
• difference
• symmetricDifference
• isSubsetOf
• isSupersetOf
• isDisjointFrom