Procedurally generated mesh JS - explain the error please

static function CreateTetrahedron () {

 var Tetrahedron : GameObject = new GameObject ("Tetrahedron");  //create an empty gameobject with that name

 Tetrahedron.AddComponent(MeshFilter);                           //add a meshfilter

 var p0 : Vector3 = Vector3(0,0,0);                              //the four points that make a tetrahedron
 var p1 : Vector3 = Vector3(1,0,0);
 var p2 : Vector3 = Vector3(0.5f,0,Mathf.Sqrt(0.75f));
 var p3 : Vector3 = Vector3(0.5f,Mathf.Sqrt(0.75f),Mathf.Sqrt(0.75f)/3);

 var newVertices : Vector3[] = new Vector3[] {                   //the non-shared vertices (line 14)
     p0,p1,p2,p0,                                                //Assets/Editor/Tetrahedron.js(14,50): BCE0044: expecting (, found '['.
     p2,p3,p2,p1,                                                //Assets/Editor/Tetrahedron.js(15,19): BCE0044: expecting :, found ','.
     p3,p0,p3,p1
 };

 var newTriangles : int[] = new int[]{                           //the triangle faces the points make up
     0,1,2,
     0,2,3,
     2,1,3,
     0,3,1
 };

 var newMesh : Mesh = new Mesh ();                               //create a new mesh, assign the vertices and triangles
     newMesh.vertices = newVertices;
     newMesh.triangles = newTriangles;
     newMesh.RecalculateNormals();                               //recalculate normals, bounds and optimize
     newMesh.RecalculateBounds();
     newMesh.Optimize();                             

 Tetrahedron.GetComponent(MeshFilter).mesh = newMesh;            //assign the created mesh as the used mesh

}