55 lines
1.7 KiB
JavaScript
55 lines
1.7 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.createSetUnion = void 0;
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var _array = require("../../utils/array.js");
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var _factory = require("../../utils/factory.js");
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const name = 'setUnion';
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const dependencies = ['typed', 'size', 'concat', 'subset', 'setIntersect', 'setSymDifference', 'Index'];
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const createSetUnion = exports.createSetUnion = /* #__PURE__ */(0, _factory.factory)(name, dependencies, _ref => {
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let {
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typed,
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size,
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concat,
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subset,
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setIntersect,
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setSymDifference,
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Index
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} = _ref;
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/**
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* Create the union of two (multi)sets.
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* Multi-dimension arrays will be converted to single-dimension arrays before the operation.
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*
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* Syntax:
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*
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* math.setUnion(set1, set2)
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*
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* Examples:
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*
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* math.setUnion([1, 2, 3, 4], [3, 4, 5, 6]) // returns [1, 2, 3, 4, 5, 6]
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* math.setUnion([[1, 2], [3, 4]], [[3, 4], [5, 6]]) // returns [1, 2, 3, 4, 5, 6]
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*
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* See also:
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*
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* setIntersect, setDifference
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*
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* @param {Array | Matrix} a1 A (multi)set
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* @param {Array | Matrix} a2 A (multi)set
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* @return {Array | Matrix} The union of two (multi)sets
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*/
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return typed(name, {
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'Array | Matrix, Array | Matrix': function (a1, a2) {
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if (subset(size(a1), new Index(0)) === 0) {
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// if any of them is empty, return the other one
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return (0, _array.flatten)(a2);
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} else if (subset(size(a2), new Index(0)) === 0) {
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return (0, _array.flatten)(a1);
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}
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const b1 = (0, _array.flatten)(a1);
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const b2 = (0, _array.flatten)(a2);
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return concat(setSymDifference(b1, b2), setIntersect(b1, b2));
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}
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});
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}); |