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

Extract yesterday's date from today

//optimized way 
        var yesterday = new Date();
        yesterday.setDate(yesterday.getDate()-1);
        console.log(yesterday) // log yesterday's date 


//in-detail way 
        var today = new Date();
        var yesterday = new Date();
        yesterday.setDate(today.getDate()-1);
        console.log(yesterday) // log yesterday's date