JSFiddle - React, Tailwind, and code Playground

HTML

<div class="date" data-value='13032015' data-formatted="13th March 2015" id='something'>13</div>
<div class="date" data-value='14032015' data-formatted="14th March 2015" id='something'>14</div>
<div class="date" data-value='15032015' data-formatted="15th March 2015" id='something'>15</div>
<input type='text' value='' name='dateA' id='dateF'> 
<input type='hidden' value='' name='dateA' id='dateD'>

JavaScript

var date = $('.date');
var inputD = $('#dateD');
var inputF = $('#dateF');
date.on('click', function(){
    var valueD = $(this).data('value');
    var valueF = $(this).data('formatted');
    inputD.val(valueD);
    inputF.val(valueF);
    console.log(valueD);
});