javascript - convert DD/MM/YYYY to YYYYMMDD to compare it with a given string -

i wanted convert date string removing "/" , make yyyymmdd compare first 6 characters of given string.

html:

    <div class="cust-dob">       <span class="input-append date form-control2" id="dp3" data-date="12-02-2012" data-date-format="dd-mm-yyyy" placeholder="">          <input class="span2 valid" size="9" name="custdob" id="custdob" type="text" placeholder="dob" value="" readonly="" aria-invalid="false">            <span class="add-on"><i class="fa fa-calendar" aria-hidden="true"></i></span>     </span>    </div>     <input type="text" class="form-control2 resizeselect" name="nric" id="nric" placeholder="" size="12" value=""> 

script:

$("#nric").blur(function(){   var ic = $("#nric").val();   var dob = $("#cust-dob").val();   var updateddob = new date(dob.split("/").join(""));   if(ic != updateddob){     alert("wrong nric");   }   console.log(updateddob); }); 

please me fix issue.

i think want compare 2 differently formatted date strings. have 2 ways can this:

1. keep string operations

2. use moment.js

you seem trying use date conversion , string operations @ same time, can add confusion. keep simple.

code snippet:

var = '20111031';  var b = '31/10/2011';    // string operations:    console.log( b.split('/')[0] === a.split('').slice(6).join('') && b.split('/')[1] === a.split('').slice(4, 6).join('') && b.split('/')[2] === a.split('').slice(0, 4).join(''));    // true    // moment.js:    console.log(moment(b, 'dd/mm/yyyy').format() === moment(a, 'yyyymmdd').format())    // true

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.18.1/moment.js"></script>