@dashkite/joy/build/node/src/set.js

[](https://firstdonoharm.dev/version/3/0/core.html)

"use strict";
Object.defineProperty(exports, "__esModule", {
    value: true
});
function _export(target, all) {
    for(var name in all)Object.defineProperty(target, name, {
        enumerable: true,
        get: Object.getOwnPropertyDescriptor(all, name).get
    });
}
_export(exports, {
    get difference () {
        return difference;
    },
    get duplicates () {
        return duplicates;
    },
    get intersection () {
        return intersection;
    },
    get symmetricDifference () {
        return symmetricDifference;
    },
    get union () {
        return union;
    },
    get unique () {
        return unique;
    }
});
const _function = require("./function");
var difference, duplicates, intersection, symmetricDifference, union, unique;
union = function(ax, bx) {
    return new Set(ax).union(new Set(bx));
};
intersection = (0, _function.curry)(function(ax, bx) {
    return new Set(ax).intersection(new Set(bx));
});
symmetricDifference = function(ax, bx) {
    return new Set(ax).symmetricDifference(new Set(bx));
};
difference = function(ax, bx) {
    return new Set(ax).difference(new Set(bx));
};
unique = function(ax) {
    return new Set(ax);
};
duplicates = function(ax) {
    var a, bx, cx;
    bx = new Set(); // items we've seen at least once
    cx = new Set(); // items we've seen at least twice
    for (a of ax){
        if (bx.has(a)) {
            cx.add(a);
        } else {
            bx.add(a);
        }
    }
    return cx;
};
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 //# sourceURL=/@dashkite/joy/src/set.coffee

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