javascript format date time string to code example

Example 1: javascript convert date to yyyy-mm-dd

// `date` is a `Date` object
const formatYmd = date => date.toISOString().slice(0, 10);

// Example
formatYmd(new Date());      // 2020-05-06

Example 2: jquery format date

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('-');
 }
 alert(formatDate('05/08/2015'));

Example 3: 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 4: 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.