converting c# to javascript error

Unity Engine
1

:!:
unknown error happened when i tried convert c# code to javascript code, the code is to make “Instant Replay” by record an object positions then replay it again, in c# code worked well, but when i convert it to javascript it gave me error, the following are codes and console error report, I hope someone guide me where is my wrong in javascript code:

c# code:

using UnityEngine;
using System.Collections.Generic;

public sealed class Recorder : MonoBehaviour
{
  private bool isRecording = false;
  private bool isReplaying = false;
  private int currentFrame = 0;
  private List<Vector3> snapShots = new List<Vector3>();

  private void FixedUpdate()
  {
    if (isRecording)
    {
      gameObject.name = "Recorder (Recording)";
      snapShots.Add(transform.position);
    }
    else if (isReplaying)
    {
      gameObject.name = "Recorder (Replaying)";
      transform.position = snapShots[currentFrame];
      ++currentFrame;
      if (currentFrame >= snapShots.Count)
      {
         isReplaying = false;
      }
    }
    else
    {
      gameObject.name = "Recorder (Idle)";
    }

    // Toggle recording
    if (Input.GetKeyDown("1"))
    {
       isRecording = !isRecording;
       isReplaying = false;
       if (isRecording)
       {
          // Create new snapShots for new recording
          snapShots = new List<Vector3>();
       }
    }

    // Toggle playback
    if (Input.GetKeyDown("2"))
    {
       isRecording = false;
       isReplaying = !isReplaying;

       if (isReplaying)
       {
          // Reset currentFrame
          currentFrame = 0;
       }
    }
  }
}

javascript code:

private var isRecording : boolean = false;
private var isReplaying : boolean = false;
private var currentFrame : int = 0;
private var snapShots = new Array (Vector3);

function FixedUpdate()
{
if (isRecording)
    {
      gameObject.name = "Recorder (Recording)";
      snapShots.Add(transform.position);
    }
else if (isReplaying)
    {
      gameObject.name = "Recorder (Replaying)";
      //transform.position = snapShots[currentFrame];
	  transform.position = snapShots[currentFrame];
      currentFrame++;
      if (currentFrame >= snapShots.length)
      {
         isReplaying = false;
      }
    }
	    else
    {
      gameObject.name = "Recorder (Idle)";
    }


    // Toggle recording
    if (Input.GetKeyDown("1"))
    {
       isRecording = !isRecording;
       isReplaying = false;
       if (isRecording)
       {
          // Create new snapShots for new recording
          snapShots = new Array(Vector3);
       }
    }
// Toggle playback
    if (Input.GetKeyDown("2"))
    {
       isRecording = false;
       isReplaying = !isReplaying;

       if (isReplaying)
       {
          // Reset currentFrame
          currentFrame = 0;
       }
    }

}

console report:

InvalidCastException: Cannot cast from source type to destination type.
RecorderJS.FixedUpdate ()   (at Assets\scripts\RecorderJS.js:18)
2

It would help us help you faster if you pointed out which line the error is on.

(When you see an error in the Console, you can double-click it to go right to the problematic line. This works well most of the time.)

3

This is the line which console refer to:

transform.position = snapShots[currentFrame];
4

I actually don’t know why this fixes it, but it does.

private var snapShots = new Array ();

And in case you’re wondering, it doesn’t introduce dynamic typing. At least Unity iPhone doesn’t think it does, because it’s not throwing me any errors.

5

The problem still live, changing into “Array()” didn’t solve the problem

6

It did on my end.

Did you make sure to change this line, too?

 // Create new snapShots for new recording 
snapShots = new Array(Vector3);