Answers for "js convert dd/mm/yyyy to yyyy-mm-dd"

javascript format date yyyy-mm-dd

// yyyy-mm-dd
new Date().toISOString().slice(0, 10)

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

javascript convert date from mm/dd/yyyy to yyyymmdd

var yourdate = date.split("/").reverse().join("-");

convert a new date standard to a yyy-mm-dd format in javascript

function convert(str) {
  var date = new Date(str),
    mnth = ("0" + (date.getMonth() + 1)).slice(-2),
    day = ("0" + date.getDate()).slice(-2);
  return [date.getFullYear(), mnth, day].join("-");
}

console.log(convert("Thu Jun 09 2011 00:00:00 GMT+0530 (India Standard Time)"))
//-> "2011-06-08"