I am interested in a portable way of writing a string to standard output, without implicit newlines added to the end, ideally forcing encoding to UTF-8, that works with either of

• jrunscript (from any JDK)


• Rhino


• node.js

My current code tries to detect where it is running, then uses a platform-specific write method:

  if (typeof process !== undefined) {     // assume node.js

    var log = function(string) {process.stdout.write(string);};

  }

  else if (typeof println == undefined) { // assume rhino

    var log = function(string) {java.lang.System.out.write(java.lang.String(string).getBytes(utf-8));};

  }

  else {                                    // assume jrunscript

    var log = function(string) {java.lang.System.out.print(string);};

  }

  log(X);

  log(Y);

It should result in:

  XY

Can this be done better?

For jrunscript, I had been using function print, but that changed its behavior in JDK-8 on behalf of JDK-8021773.