js获取当前时间(yyyy-mm-dd hh:mm:ss)的方法

function getTime(){
var date = new Date();
var seperator1 = "-";
var seperator2 = ":";
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 = date.getFullYear() + seperator1 + month +     seperator1 + strDate + " " + date.getHours() + seperator2 + date.getMinutes()+ seperator2 + date.getSeconds();
return currentdate;
}
console.log(getTime());//2017-08-04 11:33:13