filter

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vt.filter;

jquery ??() ??? ???

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??: ??.filter(selector)

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selector ?? ?? ?? ??? ????? ?? ??? ???? ??? ??? ????.
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DOM ?? ???? ???? jQuery ??? ?? ?? .filter() ???? ???? ??? ?? ??? ???? ? jQuery ??? ?????. ??? ???? ? ??? ????? ???? ???? ?? ??? ??? ?????.

jquery ??() ??? ?

<!DOCTYPE html>
<html>
<head>
  <style>
  div { width:60px; height:60px;
        margin:5px; float:left;
        border:2px white solid; }
  </style>
  <script type="text/javascript" src="http://apps.bdimg.com/libs/jquery/2.1.1/jquery.min.js"></script>
</head>

<body>
  <div></div>

  <div class="middle"></div>
  <div class="middle"></div>
  <div class="middle"></div>
  <div class="middle"></div>

  <div></div>

<script>
  $("div").css("background", "#c8ebcc")
    .filter(".middle")
    .css("border-color", "red");
</script>

</body>
</html>
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