js 获取上一周 下一周 月 年
// 获取当前周日期
const getCurrentWeekDates = (type) => {
let currentDate = null
if (type == 'before') {
currentDate = new Date(new Date(getShowDateStartOld.value).getTime() - 7 * 24 * 3600 * 1000)
} else if (type == 'after') {
currentDate = new Date(new Date(getShowDateEndOld.value).getTime() + 1 * 24 * 3600 * 1000)
} else {
currentDate = new Date()
}
const currentDayOfWeek = currentDate.getDay() // 0 (Sunday) through 6 (Saturday)
const startDate = new Date(currentDate)
const endDate = new Date(currentDate)
// 计算起始日期（周一）
startDate.setDate(startDate.getDate() - currentDayOfWeek + 1)
// 计算结束日期（周日）
endDate.setDate(endDate.getDate() - currentDayOfWeek + 7)
// 将日期转换为 YYYY-MM-DD 格式
const start = formatDateTime(startDate, 'date')
const end = formatDateTime(endDate, 'date')
return { start, end }
}
// 获取月份
const geMonthDates = (type) => {
var date = ''
if (type == 'before') {
date = new Date(new Date(getShowDateStartOld.value).getTime() - 1 * 24 * 3600 * 1000)
} else if (type == 'after') {
date = new Date(new Date(getShowDateEndOld.value).getTime() + 1 * 24 * 3600 * 1000)
} else {
date = new Date()
}
let start = formatDateTime(new Date(date.getFullYear(), date.getMonth(), 1), 'date')
let end = formatDateTime(new Date(date.getFullYear(), date.getMonth() + 1, 0), 'date')
return { start, end }
}
// 获取年
const geYearDates = (type) => {
var date = ''
if (type == 'before') {
date = new Date(new Date(getShowDateStartOld.value).getTime() - 1 * 24 * 3600 * 1000)
} else if (type == 'after') {
date = new Date(new Date(getShowDateEndOld.value).getTime() + 1 * 24 * 3600 * 1000)
} else {
date = new Date()
}
let yearOld = formatDateTime(new Date(date), 'year')
let start = formatDateTime(new Date(yearOld + '-1-1'), 'date')
let end = formatDateTime(new Date(yearOld + '-12-31'), 'date')
return { start, end }
}