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






  1. JavaScript DHTML
  2. Data Type
  3. 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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