Search the string and counts the number of e's : String « Data Type « JavaScript DHTML

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JavaScript DHTML » Data Type » String

Search the string and counts the number of e's


  







<html>

<head>

  

</head>

<body>

  <script type="text/javascript">

  var pos = 0;

  var num = -1;

  var i = -1;

  var myString = "this is a test";



  

  while (pos != -1) {

    pos = myString.indexOf("e", i + 1);

    num += 1;

    i = pos;

  }

  alert(num + " e");



  </script>

</body>

</html>

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