A. 44
B. 8
C. 4
D. Error output
<script> document.write(navigator.appCodeName); </script>
What is the output?
<script language="javascript"> function x() { document.write(2+5+"8"); } </script>
<script type="text/javascript"> var s = "9123456 or 80000?"; var pattern = /\d{4}/; var output = s.match(pattern); document.write(output); </script>