const flattenObject = (obj, prefix = '') =>
Object.keys(obj).reduce((acc, k) => {
const pre = prefix.length ? (prefix + '.') : '';
if (typeof obj[k] === 'object')
Object.assign(
acc,
flattenObject(obj[k], pre + k)
);
else acc[pre + k] = obj[k];
return acc;
}, {});
module.exports = flattenObject;