{
      "module_name": "@minecraft/server",
      "version": "1.1.0-beta"
}

import { world, system } from "@minecraft/server"
world.events.entitySpawn.subscribe(function (event) {
    let msg = "Event: " + "entitySpawn";
    world.say(msg);
});
world.events.playerSpawn.subscribe(function (event) {
    let msg = "Event: " + "playerSpawn";
    world.say(msg);
});