Can't key in week number 01 with moment.js

[shanehh]

Describe the bug

Can't key in week 202201, but it works for 202202, 202203... and 202253.

To Reproduce codepen

Expected behavior Should able to key in week 01.

FWIW, I found if change format toYYYY/WW, no this bug anymore, but isoweek is not I wanted. Thank you!

Environment:

• OS: MacOS
• Browser Chrome
• Version 100.0.4897.75
• IMask 6.4.2
• moment 2.29.2

[shanehh]

I made a workaround

const element = document.querySelector('#input-weeknum')
const momentFormat = 'YYYY-ww'
const blocksMask = IMask(element, {
  mask: 'ye\\ar {2\\0}YY / week MM',
  lazy: false, // make placeholder always visible

  blocks: {
    YY: {
      mask: '00'
    },

    MM: {
      mask: '00'
    }
  },

  validate (_, masked) {
    const v = masked.unmaskedValue
    if (v.length === 6) {
      const date = moment(v, momentFormat)
      log.debug(date)
      return date._isValid
    } else {
      return true
    }
  }
})