opath/index.js

    function getpath(obj, path) {
        path = path || "";
        var arr = path.split(".");
        var t = obj;
        var done = false;
        if (arr.length) {
            while (arr.length && !done) {
                var check = arr.shift();
                if (check !== "") {
                    t = t[check];
                }
                if (typeof t !== "object") {
                    done = true;
                }
            }
        }
        return t;
    }

    function setpath(obj, path, value) {
        if (typeof obj !== "object" || !obj) {
            throw new Error("obj is not Object");
        }
        if (typeof path !== "string" || path === "") {
            throw new Error("path must be string with length > 0");
        }
        var arr = path.split(".");
        var done = false;
        var t = obj;
        if (arr.length > 1) {
            while (arr.length && t && !done) {
                var check = arr.shift();
                if (typeof t[check] === "object" && arr.length > 0) {
                    t = t[check];
                } else {
                    done = true;
                    arr.unshift(check);
                }
            }
            var xt = t;
            while (arr.length) {
                var tt = arr.shift();
                if (arr.length) { //go deeper
                    xt = xt[tt] = {};
                } else {
                    //last
                    xt[tt] = value;
                }
            }
        } else {
            if (arr.length === 1 && arr[0] !== "") {
                t[arr[0]] = value;
            }
        }
    }

    function sort_by_1_col(a, b) {
        return a[0] > b[0] ? -1 : a[0] < b[0] ? 1 : 0;
    }

    function sort_by_1_col_alpha(a, b) {
        var x = a[0].toLowerCase(),
            y = b[0].toLowerCase();
        return x < y ? -1 : x > y ? 1 : 0;
    }

    function query(obj, str) {


        console.log(obj);

        console.log(str);



    }


    function flatten(obj, pre) {
        var pre = pre || "";
        var r = [];
        for (var i in obj) {
            if (typeof(obj[i]) === "object") {
                r = r.concat(flatten(obj[i], (pre.length > 0 ? pre + "." : "") + i));
            } else {
                r.push([(pre.length > 0 ? pre + "." : "") + i, "" + obj[i]]);

            }

        }
        r.sort(sort_by_1_col_alpha)
        return r;


    }



    module.exports = {
        get: getpath,
        set: setpath,
        flatten: flatten,
        query: query
    }