JS实现获取时间已经时间与时间戳转换

function getCurrentMonthFirst=()=>{ var date=new Date(); date.setDate(1); return common.getdateNoTime(date); }

function getBeforeDate=()=>{ var n = n; var d = new Date(); var year = d.getFullYear(); var mon = d.getMonth() + 1; var day = d.getDate(); if (day <= n) { if (mon > 1) { mon = mon - 1; } else { year = year - 1; mon = 12; } } d.setDate(d.getDate() - n); year = d.getFullYear(); mon = d.getMonth() + 1; day = d.getDate(); const s = year + '-' + (mon <10 ? '0' + mon : mon) '-' (day < 10 day day); return s; }< pre>

/** * @zhiparam sDate1 开始日期 如：2016-11-01 * @param sDate2 结束日期 如：2016-11-02 * @returns {nDays} 返回相差天数 */ function daysBetween = (sDate1, sDate2) => { var time1 = Date.parse(new Date(sDate1)); var time2 = Date.parse(new Date(sDate2)); var nDays = Math.abs(parseInt((time2 - time1) / 1000 / 3600 / 24)); return nDays; }

/** * @zhiparam startDate 开始日期 如：2016-11-01 * @param endStart结束日期 如：2016-11-02 * @returns {intervalMonth} 返回相差月数 */ function getIntervalMonth = (startDate, endStart) => { var startMonth = new Date(startDate).getMonth(); var endMonth = new Date(endStart).getMonth(); var intervalMonth = new Date(endStart).getFullYear() * 12 + endMonth - (new Date(startDate).getFullYear() * 12 + startMonth); return intervalMonth; }

/** *{param:DateTime} date 输入日期(YYYY-MM-DD) *{param:number } monthNum 月数 */ function getIntervalMonth = (startDate, endStart) => { var dateArr = date.split('-'); var year = dateArr[0]; //获取当前日期的年份 var month = dateArr[1]; //获取当前日期的月份 var day = dateArr[2]; //获取当前日期的日 var days = new Date(year, month, 0); days = days.getDate(); //获取当前日期中月的天数 var year2 = year; var month2 = parseInt(month) - monthNum; if (month2 <= 0) { var absM = Math.abs(month2); year2 = parseInt(year2) - Math.ceil(absM / 12 == 0 ? 1 : parseInt(absM) / 12); month2 = 12 - (absM % 12); } var day2 = day; var days2 = new Date(year2, month2, 0); days2 = days2.getDate(); if (day2 > days2) { day2 = days2; } if (month2 <10) { month2 = '0' + month2; } var t2 = year2 + '-' + month2 + '-' + day2; return t2; }

function getdate= (date) => { var now = new Date(date), y = now.getFullYear(), m = now.getMonth() + 1, d = now.getDate(); return y + '-' + (m <10 ? '0' + m : m) '-' (d < 10 d d) ' now.totimestring().substr(0, 8); }< pre>

function getdateNoTime= (date) => { var now = new Date(date), y = now.getFullYear(), m = now.getMonth() + 1, d = now.getDate(); return y + '-' + (m <10 ? '0' + m : m) '-' (d < 10 d d); }< pre>

function getdateTime= (date) => { var now = new Date(date), y = now.getFullYear(), m = now.getMonth() + 1, d = now.getDate(); return now.toTimeString().substr(0, 8); }

function formatting= (time) => { let date = new Date(); if (time !== undefined) { date = new Date(time); } const seperator1 = '-'; const year = date.getFullYear(); let month = date.getMonth() + 1; let strDate = date.getDate(); if (month >= 1 && month <= 9) { month = `0${month}`; } if (strDate >= 0 && strDate <= 9) { strDate = `0${strDate}`; } const currentdate = year + seperator1 + month + seperator1 + strDate; return currentdate; }