How do you get a formatted/indented JSON String from a JSON object?

Using dart:convert I can get an unindented string with this code.

var unformattedString = JSON.encode(jsonObject);

How do I take a JSON object and convert it to an indented string?

One way to do it is by creating a JSONEncoder.withIndent instance.

String getPrettyJSONString(jsonObject){
   var encoder = new JsonEncoder.withIndent("     ");
   return encoder.convert(jsonObject);
}