Как получить все дни недели в месяце?

Question

[Артур Галяев]

Используя momentjs можно сделать так:

[...Array(moment().daysInMonth()).keys()].map((_, i) => i + 1)

Но мне нужно подобное:

[{
    week: "Th",
    label: "1"   
},
{
    week: "F",
    label: "2"   
},
    .....
]

Answer 1

[Александр]

const formatter = new Intl.DateTimeFormat('en-US', {
  weekday: 'short'
});

const getMonthDays = (year, month) => {
  const date = new Date(year, month + 1, 0);
  const count = date.getDate();
  const days = [];
  
  for (let day = 1; day <= count; day++) {
    date.setDate(day);
    
    days.push({
      week: formatter.format(date),
      label: date.getDate()
    });
  }
  
  return days;
};

getMonthDays(2020, 8); // Вернет дни сентября 2020 года
/**
[
  { week: 'Tue', label: 1 },
  { week: 'Wed', label: 2 },
  { week: 'Thu', label: 3 },
  { week: 'Fri', label: 4 },
  { week: 'Sat', label: 5 },
  { week: 'Sun', label: 6 },
  { week: 'Mon', label: 7 },
  { week: 'Tue', label: 8 },
  { week: 'Wed', label: 9 },
  { week: 'Thu', label: 10 },
  { week: 'Fri', label: 11 },
  { week: 'Sat', label: 12 },
  { week: 'Sun', label: 13 },
  { week: 'Mon', label: 14 },
  { week: 'Tue', label: 15 },
  { week: 'Wed', label: 16 },
  { week: 'Thu', label: 17 },
  { week: 'Fri', label: 18 },
  { week: 'Sat', label: 19 },
  { week: 'Sun', label: 20 },
  { week: 'Mon', label: 21 },
  { week: 'Tue', label: 22 },
  { week: 'Wed', label: 23 },
  { week: 'Thu', label: 24 },
  { week: 'Fri', label: 25 },
  { week: 'Sat', label: 26 },
  { week: 'Sun', label: 27 },
  { week: 'Mon', label: 28 },
  { week: 'Tue', label: 29 },
  { week: 'Wed', label: 30 }
]
*/