This code registers listeners with on() and once() on the same event, then emits it twice. What gets logged?

const EventEmitter = require("events");

const emitter = new EventEmitter();

emitter.on("greet", () => console.log("Hello"));
emitter.once("greet", () => console.log("Hi (once)"));
emitter.on("greet", () => console.log("Hey"));

emitter.emit("greet");
emitter.emit("greet");