js获取当前时间，日期，7天前时间，时间戳转换，uniapp使用

1获取当前时间YYYY-MM-DD

function getNowDate(){
  var date = new Date();
  var seperator1 = "-";
  var year = date.getFullYear();
  var month = date.getMonth() + 1;
  var strDate =date.getDate() ;
  if (month >= 1 && month <= 9) {
	month = "0" + month;
  }
  if (strDate >= 0 && strDate <= 9) {
	strDate = "0" + strDate;
  }
  var currentdate = year + seperator1 + month + seperator1 + strDate;
  return currentdate
};

2获取YYYY-MM-DD hh:mm:ss

function getNowDatetime(){
	var date = new Date();
	var seperator1 = "-";
	var year = date.getFullYear();
	var month = date.getMonth() + 1;
	var strDate =date.getDate() ;
	if (month >= 1 && month <= 9) {
		month = "0" + month;
	}
	if (strDate >= 0 && strDate <= 9) {
		strDate = "0" + strDate;
	}
	var hh = date.getHours()
	var mm = date.getMinutes()
	var ss = date.getSeconds()
	if (hh >= 0 && hh <= 9) {
		hh = "0" + hh;
	}
	if (mm >= 0 && mm <= 9) {
		mm = "0" + mm;
	}
	if (ss >= 0 && ss <= 9) {
		ss = "0" + ss;
	}
	var currentdate = year + seperator1 + month + seperator1 + strDate+' '+hh+':'+mm+':'+ss;
	return currentdate
};

3获取7天前的时间YYYY-MM-DD

function get7Date(){
  var date1 = new Date();
  var date2=new Date(date1)
  date2.setDate(date1.getDate()-7)
  var seperator1 = "-";
  var year = date2.getFullYear();
  var month = date2.getMonth() + 1;
  var strDate =date2.getDate() ;
  if (month >= 1 && month <= 9) {
  	month = "0" + month;
  }
  if (strDate >= 0 && strDate <= 9) {
  	strDate = "0" + strDate;
  }
  var currentdate2 = year + seperator1 + month + seperator1 + strDate;
  // console.log(currentdate2) 
 
  return currentdate2
};

4时间戳转时间YYYY-MM-DD hh：mm

function turnTime(x) {
	var date = new Date(x)
	var Y = date.getFullYear() + '-'
	var M = (date.getMonth() + 1 < 10 ? '0' + (date.getMonth() + 1) : date.getMonth() + 1) + '-'
	var D = (date.getDate() < 10 ? '0' + date.getDate() : date.getDate()) + ' '
	var h = (date.getHours() < 10 ? '0' + date.getHours() : date.getHours()) + ':'
	var m = (date.getMinutes() < 10 ? '0' + date.getMinutes() : date.getMinutes()) 
	return Y + M + D + h + m
};

5日期转时间戳，调用.getTime()方法