module.exports = function flattenObj (ob) {

    // The object which contains the
    // final result
    let result = {};

    // loop through the object "ob"
    for (const i in ob) {

        // We check the type of the i using
        // typeof() function and recursively
        // call the function again
        if ((typeof ob[i]) === 'object' && !Array.isArray(ob[i])) {
            const temp = flattenObj(ob[i]);
            for (const j in temp) {

                // Store temp in result
                result[i + '.' + j] = temp[j];
            }
        }

        // Else store ob[i] in result directly
        else {
            result[i] = ob[i];
        }
    }
    return result;
};