format data js code example

Example 1: javascript date format

const event = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));

const options = {  year: 'numeric', month: 'short', day: 'numeric' };

console.log(event.toLocaleDateString('de-DE', options));
// expected output: Donnerstag, 20. Dezember 2012

console.log(event.toLocaleDateString('en-US', options));
// US format 


// In case you only want the month
console.log(event.toLocaleDateString(undefined, { month: 'short'}));
console.log(event.toLocaleDateString(undefined, { month: 'long'}));

Example 2: javascript format date

var options = { weekday: 'long', year: 'numeric', month: 'long', day: 'numeric' };
var today  = new Date();

console.log(today.toLocaleDateString("en-US")); // 9/17/2016
console.log(today.toLocaleDateString("en-US", options)); // Saturday, September 17, 2016
console.log(today.toLocaleDateString("hi-IN", options));

Example 3: Format Date Javascript

const dateStr = '2020-06-21T10:15:00Z',
      
      [yyyy,mm,dd,hh,mi] = dateStr.split(/[/:\-T]/)
      
console.log(`${dd}-${mm}-${yyyy} ${hh}:${mi}`)

Example 4: javascript full date as string

<p>The toDateString() method converts a date to a date string:</p>

<p id="demo"></p>

<script>
var d = new Date();
document.getElementById("demo").innerHTML = d.toDateString();
</script>
//output: Fri Oct 16 2020

Example 5: javascript date format

Modern JavaScript date utility library https://date-fns.org/
date-fns provides the most comprehensive, yet simple and consistent toolset for manipulating JavaScript dates in a browser & Node.js.