convert date format dd/mm/yyyy to yyyymmdd in javascript 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: convert date dd/mm/yyyy to date object js

DateParts = data.split("/");

new Date(+DateParts[2], DateParts[1] - 1, +DateParts[0]).setUTCHours(
      0,
      0,
      0,
      0
    )