convert c# to JavaScript Problem

Hello Friends..

I am working on google play service nd unfortunately i stuck at one point. i want to convert block of code into javascript..

here is c# code :

  Social.localUser.Authenticate((bool success) => {
                     mWaitingForAuth = false;
                     mStatusText = success ? "Successfully authenticated" : "Authentication failed.";
                 });

I want to convert this block in java script.. Parameter passed is of type Action

The method which is called is here :

  /// <summary>
         /// Authenticates the local user. Equivalent to calling
         /// <see cref="PlayGamesPlatform.Authenticate" />.
         /// </summary>
         public void Authenticate(Action<bool> callback) {
             mPlatform.Authenticate(callback);
         }
 
         /// <summary>
         /// Authenticates the local user. Equivalent to calling
         /// <see cref="PlayGamesPlatform.Authenticate" />.
         /// </summary>
         public void Authenticate(Action<bool> callback, bool silent) {
             mPlatform.Authenticate(callback, silent);
         }

this is available in another class.

If u dont understand then plz ask me again.

Thanks for your help and support till now..