this Keyword in Different Contexts

What issue exists with 'this' in the Promise chain?

const api = {
  baseURL: 'https://api.example.com',
  fetch() {
    return Promise.resolve().then(function() {
      return this.baseURL;
    });
  }
};

Promises don't support this
this binding is lost in callback
'this' in Promise chains: 1) Regular functions in .then lose 'this' context, 2) Each callback has its own 'this' binding, 3) Cannot access outer object's properties, 4) Common in async operations, 5) Fix using arrow function or bind(), 6) Similar issue in other callback-based APIs.
baseURL is not accessible
Then method is incorrect

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