Creating an actor

Actor can be spawned with new operator for convenience. You can also use BeginSpawningActorFromClass and FinishSpawningActor.

let location = {X:10}
let actor = new Actor(GWorld, location)
function kill() {
  actor.DestroyActor()
}
setTimeout(kill,1000)

Make your own AActor

const uclass = require('uclass')().bind(this,global)
class MySMA extends StaticMeshActor {
  ctor() {
    this.StaticMeshComponent.SetStaticMesh(StaticMesh.Load('/Engine/BasicShapes/Cube.Cube'))
  }
}      
let MySMA_C = uclass(MySMA) 
new MySMA_C(GWorld,{Z:100})

Note: you can use process.nextTick(tick) instead of the Actor::Tick() event:

function tick() {
    // do something every tick
    // reschedule it
    process.nextTick(tick)
}