mySQL through docker compose not available at localhost

I deployed mysql via docker compose and it's available at 0.0.0.0 and at 127.0.0.1 via commands mysql --host=127.0.0.1 --user=root --password=team6 --port=53366 and mysql --host=0.0.0.0 --user=root --password=team6 --port=53366 but mysql --host=localhost --user=root --password=team6 --port=53366 fails due to "ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)", why?

My end goal is for this code to work

      con = await mysql.createConnection({
        host:  'localhost',
        port:  '53366', //We need to consider adding new users
        user: 'root',
        password: 'team6',
        database: 'Yahtzee',
      });

My compose file:

# Compose file for creating a database named Yahtzee in a mysql container
version: '3.8'
services:
  team6db:
    image: mysql/mysql-server:latest
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: team6
      MYSQL_DATABASE: Yahtzee
      MYSQL_ROOT_HOST: '%'
    volumes:
      - team6db:/var/lib/mysql
      - ./Initdb.sql:/docker-entrypoint-initdb.d/Initdb.sql
      - ./InsertSampleGameRecords.sql:/docker-entrypoint-initdb.d/InsertSampleGameRecords.sql
    ports:
      - '53366:3306'

  team6phpmyadmin:
    image: phpmyadmin/phpmyadmin:latest
    restart: always
    depends_on:
      - team6db
    environment:
      PMA_HOST: team6db
      PMA_USER: root
      PMA_PASSWORD: team
    ports:
      - '50086:80'

volumes:
  team6db:

Solution

Ended up having a typo in my connection where I defined my port as "user" within the library I was calling (should have just been passing the connection in but whatever that's a separate problem). Now the tests work fine with localhost as the port but mysql --host=localhost --user=root --password=team6 --port=53366 still fails with the error ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES) while mysql --host=127.0.0.1 --user=root --password=team6 --port=53366 and mysql --host=0.0.0.0 --user=root --password=team6 --port=53366 both succeed. I don't understand why and I would like to know but I've been working on this for far longer than I'd like to admit and given my tests work now I'm moving on.