JSFiddle - React, Tailwind, and code Playground

by I Sang Hyeon

HTML

<p>
<input type ="text" id="inputText"/><input type="button" id="b" value="button"/>
</p>
<p id="d">
empty
</p>

JavaScript

$('#inputText').val('2018-09-09');
$('#b').click(function(){
var inputText = $('#inputText').val();

//var dateformat = /^\d{4}[\/\-]?(([01]\d)?|([0-9]))[\/\-]?(([012]\d)?|3[01])$/;
var dateformat = /^(19|20)\d{2}[\.|\/|\-](0[1-9]|1[012])[\.|\/|\-](0[1-9]|[12][0-9]|3[0-1])$/;
	// 정규 표현식으로 날짜 맞추기.
	if (inputText.match(dateformat)) {
  $('#d').text('true');
  }else{
  $('#d').text('false');
  }
});