javascript - Memory game is removing any div even if the innerHTMLs do not match -

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i creating basic memory game. want remove divs if first clicked div's innerhtml matches second, reason remove divs no matter 2 divs clicked. how fix issue?

var picker = null;  var pickertwo = null;  var count = 0;    function flip(event) {    if (count === 0) {      event.currenttarget.style.opacity = "1";      picker = event.currenttarget;      count++;        } else if (count === 1) {      event.currenttarget.style.opacity = "1";      pickertwo = event.currenttarget;          if (picker.innerhtml === pickertwo.innerhtml) {          settimeout(function() {          var bigboy = picker.parentnode;          var littleboy = pickertwo.parentnode;          bigboy.removechild(picker);          littleboy.removechild(pickertwo);          bigboy.parentnode.removechild(bigboy);          littleboy.parentnode.removechild(littleboy);        }, 800);        } else if (picker.innerhtml != pickertwo.innerhtml) {        settimeout(function() {          picker.style.opacity = "0";          pickertwo.style.opacity = "0";        }, 800);      }      count = 0;    }    }
.card2 {    background-color: #425dff;    width: 100px;    height: 100px;    margin-bottom: 10px;  }
<head>    <title>memory</title>    <link rel="stylesheet" href="css/style.css">  </head>    <body>      <div id="theboard">        <div id="case1">        <div class="card2" onclick="flip(event)">a</div>      </div>        <div id="case2">        <div class="card2" onclick="flip(event)">a</div>      </div>        <div id="case3">        <div class="card2" onclick="flip(event)">b</div>      </div>        <div id="case4">        <div class="card2" onclick="flip(event)">b</div>      </div>    </div>      <script src="js/app.js"></script>

you setting opacity zero

picker.style.opacity = "0"; pickertwo.style.opacity = "0";

so hiding elements.

i think want number greater zero.


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