Comparing Dates with Javascript does not work

Question

Moment.js is driving me nuts.

I have dates in this format 10-Jul-2019 inside my array of objects alldata and here is my code: I need to filter out the objects where DueDate is outside of the range of last 90 days.

The issue is that the comparisons is not working properly...it's telling me that 11-05-2019 > 08-08-2019

Am I missing something or is there a bug in moment.js? Feel free to suggest any method that does not use moment.js

 var todate = moment().format("DD-MM-YYYY"); 
        var fromdate = moment().subtract(90, "days").format("DD-MM-YYYY");     
        var data = [];



        for (i = 0; i < alldata.length; i++) {
            duedate = moment(alldata[i].DueDate, "DD-MMM-YYYY").format('DD-MM-YYYY');
            if ( duedate >= fromdate) {
                alert("good!");
            } else
                alert("bad!");

        }

Answer 1

You are not comparing integers or numbers format returns a string.

Why not using the isAfter built-in method from moment.js library which compares two "moments".

    var fromdate = new moment().subtract(90, "days");   
    for (i = 0; i < alldata.length; i++) {
        let checkDate = new moment(alldata[i].DueDate,"DD-MMM-YYYY")
        let isAfter = checkDate.isAfter(fromdate);
        if ( isAfter ) {
            alert("good!");
        } else
            alert("bad!");

    }