<%@ WebService Language="JScript" class="PrimeNumbers" %>

  import System;
  import System.Web;
  import System.Web.Services;

  public class PrimeNumbers extends WebService {
    WebMethodAttribute public function IsPrime(n:int) : int {
      var i:int;
	  if (n % 2 == 0) return (n == 2);
	  if (n % 3 == 0) return (n == 3);
	  if (n % 5 == 0) return (n == 5);
	  for (i=7; i*i <= n; i+=2) {if (n % i == 0) return 0};
	  return 1;
    }
  }

We have imported more namespaces than absolutely required (System.Web.Services). The two other namespaces above (System and System.Web) will be used in other Web services.

To learn more about JScript .NET, go to Column 112, JScript .NET, Part VI: Creating IE Web Services.

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