Is it ok to extend a standard object?

Question

JavaScript

I am writing a telegram bot. I have an app object whose methods allow us to receive information from the user and send it. The code looks like this:

app.on('message', msg => {
  const text = msg.text;
  switch(text) {
    case '/add':
      add(redis, mongo, message, app, users);
    break:

    case '/remove':
      add(redis, mongo, message, app, users);
    break:
  }
})

And so for each team. Since in most cases the same arguments are passed to me when calling each function, I decided to extend the app object:

app.redis = redis;
app.mongo = mongo;

app.add = (){...};

Is it normal to do this in terms of readability and code quality? If not, what is the best way to do it?

Answer 1

If not, what is the best way to do it?

It is better to use some kind of IoC-container, there are quite a lot of them for js. This allows you to reduce code cohesion, which is always a good thing.