How to Parse a "Dd/Mm/Yyyy" or "Dd-Mm-Yyyy" or "Dd-Mmm-Yyyy" Formatted Date String Using JavaScript or Jquery

how to parse a dd/mm/yyyy or dd-mm-yyyy or dd-mmm-yyyy formatted date string using JavaScript or jQuery

You might want to use helper library like http://momentjs.com/ which wraps the native javascript date object for easier manipulations

Then you can do things like:

var day = moment("12-25-1995", "MM-DD-YYYY");

or

var day = moment("25/12/1995", "DD/MM/YYYY");

then operate on the date

day.add('days', 7)

and to get the native javascript date

day.toDate();

How to convert dd/mm/yyyy string into JavaScript Date object?

MM/DD/YYYY format

If you have the MM/DD/YYYY format which is default for JavaScript, you can simply pass your string to Date(string) constructor. It will parse it for you.

var dateString = "10/23/2015"; // Oct 23
var dateObject = new Date(dateString);
document.body.innerHTML = dateObject.toString();

How to convert a dd.MM.yyyy string to a Date object

If you absolutely have to have it in that format, you can rearrange it quick before using the date object as it expects a certain format..

Something like this could work.

if( typeof myVar === 'string') {
      let dateArr = myVar.split('.');

      let myDate = new Date(dateArr[1] + '-' + dateArr[0] + '-' + dateArr[2]);

      if (myDate.getTime() < this.getMinDate().getTime()) /** compare two dates */
          //omitted source code 

}

How To Convert String ' dd/mm/yy hh:MM:ss ' to Date in javascript?

If you are looking for alternatives in jquery or Javascript , then you can go with Moment.js,where you can Parse, Validate, Manipulate, and Display dates in JavaScript.

example:

  var date= moment("06/06/2015 11:11:11").format('DD-MMM-YYYY');

Date format conversion from dd-MMM-yyyy to dd-MM-yyyy in javascript

Here is the Answer...

 function GetDate(str) {
        debugger; 
                var arr = str.split('-');
               var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun','Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
               var i = 1; 
               for (i; i <= months.length; i++) { 
                      if (months[i] == arr[1])
                       {                   
                         break;                     
                       } 
                  }
                  var formatddate = i  + '/' + arr[0] + '/' + arr[2]; 
                  return formatddate;
            }

 function StartDateTimeEndDate() {
                 var startDate = document.getElementById('<%=EFF_START_DATEDVTextBox.ClientID %>').value
                 var endDate = document.getElementById('<%=EFF_END_DATEDVTextBox.ClientID %>').value  
                 var startdt = GetDate(startDate)
                 var enddt = GetDate(endDate) 

               if ((Date.parse(enddt) <= Date.parse(startdt))) {
                alert("End date should be greater than Start date");
                document.getElementById('<%=EFF_END_DATEDVTextBox.ClientID %>').value = "";
                 } 
        }

How to get current formatted date dd/mm/yyyy in Javascript and append it to an input

I hope this is what you want:

const today = new Date();
const yyyy = today.getFullYear();
let mm = today.getMonth() + 1; // Months start at 0!
let dd = today.getDate();

if (dd < 10) dd = '0' + dd;
if (mm < 10) mm = '0' + mm;

const formattedToday = dd + '/' + mm + '/' + yyyy;

document.getElementById('DATE').value = formattedToday;

How do I get the current date in JavaScript?

How to format date in javascript as DD-MMM-YYYY?

Thanks for all the contributions to this question.

I managed to create a working function for this:

formatDate(value) {
    let date = new Date(value);
    const day = date.toLocaleString('default', { day: '2-digit' });
    const month = date.toLocaleString('default', { month: 'short' });
    const year = date.toLocaleString('default', { year: 'numeric' });
    return day + '-' + month + '-' + year;
}

Format JavaScript date as yyyy-mm-dd

You can do:

function formatDate(date) {
    var d = new Date(date),
        month = '' + (d.getMonth() + 1),
        day = '' + d.getDate(),
        year = d.getFullYear();

    if (month.length < 2) 
        month = '0' + month;
    if (day.length < 2) 
        day = '0' + day;

    return [year, month, day].join('-');
}
 
console.log(formatDate('Sun May 11,2014'));

Get current date in DD-Mon-YYY format in JavaScript/Jquery

There is no native format in javascript for DD-Mon-YYYY.

You will have to put it all together manually.

The answer is inspired from :
How do I format a date in JavaScript?

// Attaching a new function  toShortFormat()  to any instance of Date() class

Date.prototype.toShortFormat = function() {

    const monthNames = ["Jan", "Feb", "Mar", "Apr",
                        "May", "Jun", "Jul", "Aug",
                        "Sep", "Oct", "Nov", "Dec"];
    
    const day = this.getDate();
    
    const monthIndex = this.getMonth();
    const monthName = monthNames[monthIndex];
    
    const year = this.getFullYear();
    
    return `${day}-${monthName}-${year}`;  
}

// Now any Date object can be declared 
let anyDate = new Date(1528578000000);

// and it can represent itself in the custom format defined above.
console.log(anyDate.toShortFormat());    // 10-Jun-2018

let today = new Date();
console.log(today.toShortFormat());     // today's date

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