fix bug created in merge, updated contributing.md

CONTRIBUTING.md

@@ -5,54 +5,15 @@
 - NodeJS v10
 - Firebase
 
-## Prerequisite - Firebase Setup
+## Prerequisite - Mongo setup
 
-1. [Create a new Firebase project.](https://console.firebase.google.com/u/0/)
-
-   - The project name doesn't really matter, but just name it `monkeytype`.
-   - Google Analytics is not necessary.
-
-1. [Install the Firebase CLI](https://firebase.google.com/docs/cli)
-1. Run `firebase login` on your terminal to log in to the same google account as you just used to create the project.
-1. Git clone this project.
-1. Duplicate `.firebaserc_example`, rename the new file to `.firebaserc` and change the project name of default to the firebase project id you just created.
-
-   - If `.firebaserc_example` does not exist after cloning, create your own with:
-
-   ```.firebaserc
-    {
-        "projects": {
-            "default": "your-firebase-project-id"
-        }
-    }
-   ```
-
-   - Run `firebase projects:list` to find your firebase project id.
-
-1. Generate a Firebase Admin private key
-
-   - In your Firebase console, go to Project Settings > Service Accounts
-   - Click "Generate New Private Key"
-   - Save as `serviceAccountKey.json` in the `functions/` directory
-
-1. Enable Firebase Authentication
-
-   - In the Firebase console, go to Authentication
-   - Click on `Email/Password`, enable it and save
-   - Click on `Google`, add a support email and save
-
-1. Enable Firebase Firestore
-
-   - In the Firebase console, go to Cloud Firestore
-   - Create database
-   - Start in test mode
-   - Select default location and enable
+1. [Install MongoDB: Community Edition](https://docs.mongodb.com/manual/administration/install-community/)
+1. Optional: [Install Mongodb Compass](https://www.mongodb.com/products/compass) for easier viewing and manipulation of data
 
 ## Building and Running
 
-1. Run `npm install` in the project root directory to install dependencies.
+1. Run `npm ci` in the project root directory to install dependencies.
 1. Run `npm run start:dev` to start a local dev server on port 5000. It will watch for changes and rebuild when you edit files in `src/` or `public/`. Use ctrl+c to stop it.
-   - Run `firebase use <your-project-id>` if you run into any errors for this.
 
 ## Standards and Conventions
 

src/js/test/test-ui.js

@@ -192,7 +192,7 @@ export function screenshot() {
     $(".pageTest .ssWatermark").addClass("hidden");
     $(".pageTest .buttons").removeClass("hidden");
     if (revealReplay) $("#resultReplay").removeClass("hidden");
-    if (firebase.auth().currentUser == null)
+    if (DB.currentUser() == null)
       $(".pageTest .loginTip").removeClass("hidden");
   }