dayjs.max(dayjs('2018-01-01')) ===null?

[171h]

I think dayjs.max(dayjs('2018-01-01')) shoulde tobe dayjs('2018-01-01') instead of null

[171h]

in my case, i get many datestr containing null values，i just want the min/max one, but when only one isValid, i always get null.

// lss is an array having many datestr containing null values
const essDayjs = lss.map(i => dayjs(i)).filter(i => i.isValid())
const lsMin = dayjs.min(...essDayjs)
if (lsMin && lsMin.isValid())
  return lsMin.format('YYYY-MM-DD HH:mm:ss')
return null

I have to write bellow to get the results i want

const essDayjs = lss.map(i => dayjs(i)).filter(i => i.isValid())
if (essDayjs.length === 0)
  return null
if (essDayjs.length === 1)
  return essDayjs[0].format('YYYY-MM-DD HH:mm:ss')
const lsMin = dayjs.min(...essDayjs)
if (lsMin && lsMin.isValid())
  return lsMin.format('YYYY-MM-DD HH:mm:ss')
return null