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Display time from string timestamp in javascript

I am trying to display the date from time stamp using JavaScript but not working please check my code and it's not working due to string time but if i passed in number then it's working but this time coming from API so i must need to do something here. can anyone please help me.
var timestamp = '1607110465663'
var date = new Date(timestamp);
console.log(date.getTime())

You can convert string to number using methods such as Number or parseInt before creating Date object.
e.g.
var timestamp = '1607110465663'
var date = new Date(Number(timestamp));
console.log(date.getTime())

Parse string into int then...:
var timestamp = '1607110465663'
var date = new Date(parseInt(timestamp));
and use date object
console.log(date)

Remove the '' from timestamp
var timestamp = 1607110465663
var date = new Date(timestamp);
console.log(date.getTime())
console.log(date)
See JSfiddle

How to convert into Date time

When the date is passed from my c# to JavaScript it returns the date time as {4/3/2020 12:00:00 AM}
but in JavaScript it is shown as 1585852200000.
What is the format that is being used? And how can i convert it back?

You need to convert the Unix timestamp to DateTime format,
var localDate = new Date(1585852200000).toLocaleDateString("en-US")
console.log(localDate); // only local date
var localTime = new Date(1585852200000).toLocaleTimeString("en-US")
console.log(localTime) // only local time
// local datetime
console.log(new Date(1585852200000).toLocaleString());

1585852200000 is epoch date.
you can convert it as
var date = new Date(1585852200000)
console.log(new Date(1585852200000));

As an alternative from Shivaji's answer:
When you are passing the date through to JS you could cast it as a string with DateTime.ToString("dd/MM/yyyy") seen here on MSDN.
This will keep its integrity visually, if it is just for display purposes, otherwise you will need to re-cast appropriately in JS (in which case use Shivaji's answer).

JavaScript Date's object will return the DATE object and it's POSITION that is being assigned in your computer. So, when you are working with a date or datetime types, you can use some of the methods that are provided by the Date object, such as getDate() and getDay(). But, a better solution would be to format the Date object itself. For example: use the toString() or toUTCString() methods.
var d = new Date();
document.getElementById("demo").innerHTML = d.toString();
Reference:
https://www.w3schools.com/js/js_date_formats.asp
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date

Convert integer to Date in node.js

I'm trying to convert a integer to a Date using node .js, and Date.
I know that this is a very common question but all the solutions that have been posted before have failed to help me.
I am getting the dates from a json file found at http://api.guardian.gg/chart/elo/4611686018432537994,
Example date: 1461110400000
What I've tried:
var date = String(new Date(elodata.x));
and
var date = String(new Date(parseInt(elodata.x)));
But I get invalid date as a result.
I realise that this might not be doable because I don't know how guardian.gg handles this data. But you never know.

You can pass in your value directly to a Date constructor in Javascript if it is an integer (which it appears to be in :
var date = new Date(elodata.x);
Likewise, you can also use the the setTime() function in Javascript to pass your integer value in if you already have an existing object :
var date = new Date();
d.setTime(elodata.x);
Example
var d1 = new Date(1461110400000);
console.log(`Constructor: ${d1}`);
var d2 = new Date();
d2.setTime(1461110400000);
console.log(`setTime(): ${d2}`);

When a single argument is passed to the Date constructor, if it's a string it will be parsed. The result of that is implementation dependent but if 1461110400000 is a string it will almost certainly give an invalid date.
If given a number, it's treated as a time value. So if you're passing a number, make sure it's type number:
var timeValue = '1461110400000';
console.log( new Date(+timeValue));
You could also use Number(timeValue) or parseInt(timeValue) but unary + is less to type.

How to get date object from moment.js after formatting it

Using typescript, I am formatting my date with moment.js like this.
function getCreatedDate(objContainingDate: any): Date {
// Following line does not work since it is returning string,
// I need formatted date object to return
return moment(objContainingDate.createdDate).format("L")
}
The format method returns a string, how to convert it back to date object ?

This might be a delayed response.But, I think it can help others who still needs an answer.
https://momentjs.com/guides/#/lib-concepts/internal-properties/
To retrieve a native Date object from Moment, use .toDate()
You can directly get the Date object from Moment.

Using the date object with moment clones it and the original object is left intact to continue to use. But to convert it back just pass the formatted moment string into a new date object.
var myDateObj = new Date(2011, 9, 16);
var now = moment(myDateObj);
#Now convert it back to date object
var newDateObj = new Date(now.format("YYYY-MM-DDTHH:mm:ssZ"));

Comparing date with date in string javascript

I am trying to compare a couple of dates in javascript. First of it, I got froma database. In database it is in date format but after send it in a json file I guess it is just a string.
The second I got it in Date format in javascript. I found this script in javascript:
var todayAEJ = new Date();
var ddAEJ = todayAEJ.getDate();
var mmAEJ = todayAEJ.getMonth()+1; //January is 0!
var yyyyAEJ = todayAEJ.getFullYear();
if(ddAEJ<10){ddAEJ='0'+ddAEJ} if(mmAEJ<10){mmAEJ='0'+mmAEJ} todayAEJ = ddAEJ+'-'+mmAEJ+'-'+yyyyAEJ;
ANd it works like a charm.
The other date is like this: 13-01-2014
I tried to compare like this:
if(todayAEJ > val.date_End)...
But it returns true when today's day is bigger than val.date_End's day. So I cannot use this form when the month is diferent. What can I do in this case?

otherDate = '13-01-2014';
myDate=myDate.split("-");
var newDate=myDate[1]+","+myDate[0]+","+myDate[2];
otherDateTimeStamp = new Date(newDate).getTime();
todayAEJTimeStamp = new Date().getTime();
if(todayAEJTimeStamp > otherDateTimeStammp){
// your code
}
you can even use var newDate=myDate[1]+"/"+myDate[0]+"/"+myDate[2];
Use above code...it will solve your problem!
Iinjoy...

If you can use MM-DD-YYYY format instead of DD-MM-YYYY you can use Date.parse:
var todayAEJTimeStamp = Date.parse(todayAEJ);//Date parse needs `MM-DD-YYYY` format
//if val.date_End is instance of Date
if(todayAEJTimeStamp > val.date_End.getTime()) {
//your code here
}

You have to compare them via microtime
var date = new Date("11/21/1987 16:00:00");
var milliseconds = date.getTime(); // Compare this milliseconds

Apart from timestamp solutions, I would recommend to use date.js in any case you want to play with Date object in JS. Date object has pretty odd behaviour in JS, and this library comes in handy.