How to display the current day + 30 days with Javascript?

Question

I try to insert the date of today + 30 days. First of all I tried to display the current date with the following code:

<script>
var date = moment.unix(1414543560).locale('de').format("DD. MMMM YYYY");
document.write(date);
</script>

This displays the right day and Month, but unfortunately the Year is wrong (it's actually 2014)

How can I display the correct date of today + 30 days? Any ideas?

https://jsfiddle.net/e3a7bgLu/3/

Answer 1

Try

var date = moment().add(30, 'days').locale('de').format("DD. MMMM YYYY");
document.write(date);

This takes the current date ( moment() ), adds 30 days ( add(30, 'days') ) and formats the date.

This should all be very obvious after you read the moment.js documentation.

Answer 2

function addDate(date,days){ 
      var d=new Date(date); 
      d.setDate(d.getDate()+days); 
      var month=d.getMonth()+1; 
      var day = d.getDate(); 
      if(month<10){ 
           month = "0"+month; 
      } 
      if(day<10){ 
           day = "0"+day; 
      } 
      var val = d.getFullYear()+"-"+month+"-"+day; 
      return val; 
}

console.log(addDate("2014-10-10",30));
#output
2014-11-09

Answer 3

You can pass a UNIX timestamp to the Date contructor in JavaScript set the date to 30 days in the future and pass that date to Moment.

// Construct date from UNIX timestamp
var date = new Date(1414543560 * 1000)

// Set date to 30 days in the future
date.setDate(date.getDate() + 30)

// Format date using Moment
var formatted = moment(date).locale('de').format('DD. MMMM YYYY')

Note that if your support target allows it you don't even need Moment anymore, you can use the built-in Internationalization API that comes with the browser.

 // Construct date from UNIX timestamp var date = new Date(1414543560 * 1000) // Set date to 30 days in the future date.setDate(date.getDate() + 30) // Format date using Intl API var formatted = date.toLocaleDateString(['de-DE'], { day: '2-digit', month: 'long', year: 'numeric' }) document.write(formatted)