how to read an array in javascript in HTML5

JavaScript
<body>
  <h1>Creating Arrays</h1>
  <h2>Regular:</h2>
  <script language="JavaScript">
    // Create the array.
    var Colors = new Array();
    // Fill the array with data.
    Colors[0] = "Blue";
    Colors[1] = "Green";
    Colors[2] = "Purple";
    // Display the content onscreen.
    document.write(Colors);
  </script>
  <h2>Condensed:</h2>
  <script language="JavaScript">
    // Create the array and fill it with data.
    var Colors = new Array("Blue", "Green", "Purple");
    // Display the content onscreen.
    document.write(Colors);
  </script>
  <h2>Literal:</h2>
  <script language="JavaScript">
    // Create the array and fill it with data.
    var Colors = ["Blue", "Green", "Purple"];
    // Display the content onscreen.
    document.write(Colors);
  </script>
</body>
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