Keep the orientation of my object when it stop moving

Questions
#1

Hello, when I move an object and I orient it with the looKat function, my object is in the right direction but if I put a break point it returns to its original orientation.
How can I record the orientation of my object when it is no longer moving

var deplacement=10 ;
var vector = new THREE.Vector3(0,0,0);

  vector.setX (deplacement); 
  vector.setZ (deplacement);



camion.lookAt( vector );
function animate() {
    requestAnimationFrame( animate );
    deplacement = deplacement + 0.01;
    camion.position.x = 10 ;  
    camion.position.z = 10;
    renderer.render( scene, camera );

this is not good

camion.lookAt( vector );
function animate() {
    requestAnimationFrame( animate );
    deplacement = deplacement + 0.01;
    camion.position.x = deplacement ;  
    camion.position.z = deplacement;
    renderer.render( scene, camera );

it’s better

Merci, bonne soirée