• C#

await File.WriteAllTextAsync("data.json", JsonSerializer.Serialize(x));	

• Clojure

(write-value (file "data.json") x)

• D

auto x = JSONValue(["age":42, "name":"Bob"]);
"data.json".write(x.toJSON);

• Dart

class JsonModel {
  // Create Field
  int id;
  String qrText, licen, trans, name;

//   // Constructor
//   JsonModel(
//       int idInt, String nameString, String userString, String passwordString) {
// //     id=idInt;
// // name =nameString;
// // user =userString;
// // password = passwordString;
//   }

  JsonModel(this.id, this.name, this.licen, this.trans, this.qrText);

  JsonModel.fromJson(Map<String, dynamic> parseJSON) {
    id = int.parse(parseJSON['id']);
    licen = parseJSON['Li

• Go

buffer, err := json.MarshalIndent(x, "", "  ")
if err != nil {
	return err
}
err = os.WriteFile("data.json", buffer, 0644)

• Groovy

new File("data.json").text = new JsonBuilder(x).toPrettyString()

• JS

fs.writeFileSync('data.json', JSON.stringify(x));

• Lisp

(with-open-file (out "data.json" :direction :output)
  (yason:encode-plist x out))

• Lua

file = io.open("data.json", "w")
file:write(cjson.encode(x))
file:close()

• PHP

file_put_contents('data.json', json_encode($x));

• Pascal

var
  str: TMemoryStream;
  jss: string;
begin
  with TJSONStreamer.Create(nil) do try
    str := TMemoryStream.Create;
    try
      jss := ObjectToJSONString(x);
      str.Write(jss[1], length(jss));
      str.SaveToFile('data.json');
    finally
      str.Free;
    end;
  finally
    Free;
  end;
end.

• Perl

write_file('data.json', encode_json($x));

• Python

with open("data.json", "w") as output:
    json.dump(x, output)

• Ruby

x = {:hello => "goodbye"}

File.open("data.json", "w") do |f|
  f.puts(x.to_json)
end

• Rust

::serde_json::to_writer(&File::create("data.json")?, &x)?