console.log(d, r, n)
r.setDate(d.getDate() + n)
console.log(d, r, n)

this code give me log like this.

2021-12-31T00:00:00.000Z, 2022-01-12T03:16:30.075Z, 6

2021-12-31T00:00:00.000Z, 2022-02-06T03:16:30.075Z, 6

I think 2022-02-06 should be 2022-01-06. Why a Normal javascript is not working in react native?