How to get yesterday date in node.js backend?

Question

I am using date-format package in node back end and I can get today date using

var today = dateFormat(new Date());

In the same

Answer 1

To get the string in a format familiar to people

// Date String returned in format yyyy-mm-dd
function getYesterdayString(){
    var date = new Date();
    date.setDate(date.getDate() - 1);
    var day = ("0" + date.getDate()).slice(-2);
    var month = ("0" + (date.getMonth() + 1)).slice(-2); // fix 0 index
    return (date.getYear() + 1900) + '-' + month + '-' + day;
}

Answer 2

you can also change Hour,Minute,seconds and milliseconds attributes of time object like this.

var date = new Date();
    date.setDate(date.getDate()-1);
    date.setHours(hour);
    date.setMinutes(minute);
    date.setSeconds(seconds);
    date.setMilliseconds(milliseconds);