如何判读unity挂载的脚本是javascript 还是CSharp

MonoBehaviour parentcomp = obj.GetComponent<MonoBehaviour>();
MonoScript ms = MonoScript.FromMonoBehaviour(mb);
string scriptpath = AssetDatabase.GetAssetPath(ms);
string ext = Path.GetExtension(scriptpath);
if(ext == ".js")
{
...
}
else
{
....
}