Learn Haxe

Appending to a File in Haxe

Posted on 2015-12-28

Tagged with: Haxe

It's not obvious how to append to a file in Haxe. If you check the sys.io.File API, you'll find an append method, which looks promising, but outputs an instance of FileOutput.

The FileOutput API looks pretty sparse and unusable, until you click on the base-class Output API. There, you see promising methods, like writeString.

To combine these together, you can append a string to a file like so (don't forget to close the output stream):

public function append(message:String, fileName:String) {
  var output:FileOutput = sys.io.File.append(fileName, false);
  output.writeString(message);
  output.close();
}