Reduces treeize data

reducedTreeize.js

if (useMethod === 'treeizedReduced') {
    var rs = treeized(resultSet)

    const rsr = rs.reduce((o, r) => {
        const rc = r.categories.reduce((oo, c) => {
            oo[c.type] = {
                titles: c.titles.map(t => t.name)
            }
            return oo;
        }, {})

        o[r.name] = {
            categories: rc
        };
        return o;
    }, {});

    console.log(JSON.stringify({
        treeizedReduced: rsr
    }, null, 4));
}