Function firstOfMonth

packages/app-core/src/components/TasksCalendar.tsx:50–52

(d: Date)

const WEEKDAY_LABELS = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat']

function firstOfMonth(d: Date): Date {
  return new Date(d.getFullYear(), d.getMonth(), 1)
}

function addMonths(d: Date, n: number): Date {
  return new Date(d.getFullYear(), d.getMonth() + n, 1)