N
// `date` is a `Date` object
const formatYmd = date => date.toISOString().slice(0, 10);
// Example
formatYmd(new Date()); // 2020-05-06
N
let today = new Date()
today.toISOString().split('T')[0]
N
const formatYmd = date => date.toISOString().slice(0, 10);
formatYmd(new Date());