JSFiddle - React, Tailwind, and code Playground

by Rapha Souza

HTML

<script src="//code.jquery.com/jquery-3.3.1.slim.min.js"></script>
<link rel="stylesheet" href="//stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css">
<script src="//cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
<script src="//stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
<body>
    <div class="col-sm-4">
  <label for="ultimoDiaTrab" class="control-label">Último dia a ser trabalhado:</label>
  <input type="date" id="ultimoDiaTrab" name="ultimoDiaTrab" class="form-control">
</div>
    <script type="text/javascript">
      
    </script>

<div class="as-console-wrapper"><div class="as-console"></div></div></body>

JavaScript

var input = document.getElementById('ultimoDiaTrab');
input.addEventListener('change', function() {
  var agora = new Date();
  var escolhida = new Date(this.value);
  if (escolhida < agora) this.value = [agora.getFullYear(), agora.getMonth() + 1, agora.getDate()].map(v => v < 10 ? '0' + v : v).join('-');
	
	if (escolhida < agora){
	
	alert("Data deve Ser Maior que a Atual " + escolhida + agora);
	}
	
	
});