js时间格式方法、根据开始结束时间获取时间范围

/**
 * 日期格式化：{y}-{m}-{d} {h}:{i}:{s}
 * @param {any} time 日期时间
 * @param {string} cFormat 格式
 * @param {boolean} noYear 如果为true，则本年的时间不显示年份
 */
export function parseTime(time, cFormat, noYear) {
  if (arguments.length === 0) {
    return null
  }
  const format = cFormat || '{y}-{m}-{d} {h}:{i}:{s}'
  let date
  if (typeof time === 'object') {
    date = time
  } else if (typeof time === 'string') {
    date = new Date(time.replace(/-/g, '/')) // 兼容IOS
  } else {
    if (('' + time).length === 10) time = parseInt(time) * 1000
    date = new Date(time)
  }
  const formatObj = {
    y: date.getFullYear(),
    m: date.getMonth() + 1,
    d: date.getDate(),
    h: date.getHours(),
    i: date.getMinutes(),
    s: date.getSeconds(),
    a: date.getDay(),
  }
  let time_str = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => {
    let value = formatObj[key]
    if (key === 'a') {
      return ['一', '二', '三', '四', '五', '六', '日'][value === 0 ? 6 : value - 1]
    }
    if (result.length > 0 && value < 10) {
      value = '0' + value
    }
    return value || 0
  })

  if (noYear) {
    // 本年的时间不显示年份
    const mIndex = cFormat.indexOf('{m}')
    if (mIndex !== -1) {
      const yearFormat = cFormat.slice(0, mIndex).replace('{y}', new Date().getFullYear())
      time_str = time_str.replace(yearFormat, '')
    }
  }

  return time_str
}

// 时间转换
export function formatTime(time, option) {
  time = +time * 1000
  const d = new Date(time)
  const now = Date.now()

  const diff = (now - d) / 1000

  if (diff < 30) {
    return '刚刚'
  } else if (diff < 3600) {
    // less 1 hour
    return Math.ceil(diff / 60) + '分钟前'
  } else if (diff < 3600 * 24) {
    return Math.ceil(diff / 3600) + '小时前'
  } else if (diff < 3600 * 24 * 2) {
    return '1天前'
  }
  if (option) {
    return parseTime(time, option)
  } else {
    return (
      d.getMonth() + 1 + '月' + d.getDate() + '日' + d.getHours() + '时' + d.getMinutes() + '分'
    )
  }
}

// 根据开始时间和结束时间获取时间范围
const getAllDate = (start, end) => {
  let dateArr = []
  let startArr = start.split('-')
  let endArr = end.split('-')
  let db = new Date()
  db.setUTCFullYear(startArr[0], startArr[1] - 1, startArr[2])
  let de = new Date()
  de.setUTCFullYear(endArr[0], endArr[1] - 1, endArr[2])
  let unixDb = db.getTime()
  let unixDe = de.getTime()
  let stamp
  const oneDay = 24 * 60 * 60 * 1000;
  for (stamp = unixDb; stamp <= unixDe;) {
    dateArr.push(parseTime(new Date(parseInt(stamp)), '{y}-{m}-{d}'))
    stamp = stamp + oneDay
  }
  return dateArr
}