Enumerator.moveFirst() : Enumerator « MS JScript « JavaScript Tutorial






  1. JavaScript Tutorial
  2. MS JScript
  3. Enumerator

The moveFirst() method moves the enumerator to the beginning of the collection. If the collection is empty or undefined, undefined is returned.

<html>
    <H1>Drive Letters and drive types:</H1>
    <script language="JScript">
    <!--
    var fileSysObj = new ActiveXObject("Scripting.FileSystemObject");

    var en = new Enumerator(fileSysObj.Drives);

    for (;!en.atEnd();en.moveNext()) {
      document.write("Drive " + en.item().DriveLetter + " is of type " + en.item().DriveType+"<br>");

    }
    document.write("<h1>Drive Status:</h1>");
    en.moveFirst();

    for (;!en.atEnd();en.moveNext()) {
      if(en.item().IsReady) {
        document.write("Drive ",en.item().DriveLetter);
        document.write(" is ready!<br>");
      } else {
        document.write("Drive ",en.item().DriveLetter);
        document.write(" is not ready!<br>");
      }
    }
    -->
    </script>
    </html>








32.7.Enumerator
32.7.1.Enumerator
32.7.2.Enumerator.atEnd()
32.7.3.Enumerator.item()
32.7.4.Enumerator.moveFirst()
32.7.5.Enumerator.moveNext()