I would like to subtract 7 days from current date to get formatted date YYYY-MM-DD using moment.js library.

**I tried to do by this way:**

```
    dateTo = moment(new Date()).format('YYYY-MM-DD');
    dateFrom = moment(new Date() - 7).format('YYYY-MM-DD');

   console.log(dateFrom);
   console.log(dateTo);

```

But all returned values are same.