Windows Script Host
Launching
At the console, type
cscript //nologo scriptname.js
The //nologo is optional; it suppresses the version output (which, for reasons unknown, is output on default!).
Non-simple scripts
To run something that encompasses more than one script file (that is, something that includes something else) or language, use a .wsf script. Here is what a typical one might look like:
<package>
<job>
<script language="javascript" src="zomg.js"></script>
<script language="javascript">
zomg("Howdy");
</script>
</job>
</package>
The function zomg() should be defined in zomg.js.
The following could be useful for running tests with cscript:
<package>
<job>
<script language="javascript">
var stdin = WScript.StdIn;
var stdout = WScript.StdOut;
var stderr = WScript.StdErr;
</script>
<script language="javascript" src="test.js"></script>
</job>
</package>
Console I/O
To write to stdout, use the WScript.StdOut object. For stderr, WScript.StdErr.
WScript.StdOut.Write("something");
WScript.StdErr.WriteLine("something that's a line");
WScript.StdIn, of course, corresponds to stdin.
var input = ""; while(!WScript.StdIn.AtEndOfLine) input += WScript.StdIn.Read(1); // read 1 character
var stdin = WScript.StdIn;
var stdout = WScript.StdOut;
while(!stdin.AtEndOfStream)
{
var str = stdin.ReadLine();
stdout.WriteLine("Line " + (stdin.Line - 1) + ": " + str);
}
