JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.4/jquery.min.js"></script>
<div class='test'>
  testing {date}
</div>

JavaScript

var testtt = $('.test');

function getDate(date) {
    const primeDataDate = new Date(`${date}`);
    const day = primeDataDate.getDate();
    const month = primeDataDate.getMonth();
    const year = primeDataDate.getFullYear();
    const monthNames = [
      "January",
      "February",
      "March",
      "April",
      "May",
      "June",
      "July",
      "August",
      "September",
      "October",
      "November",
      "December",
    ];

    const finalDate = `${day} ${monthNames[month]} ${year}`;
    /* `Hi, I'm ${name} and I'm from ${country}`; */
    return finalDate;
  }
  
 
  const primeData = {
    date: `${getDate('30 March 2023')}`
  }
  testtt.html(this.testtt.html().replace('{date}', primeData.date));

//30 April 2023
//date: `${getDate(data[`switch_off_date`])}`