Eslint and editing code on demand?

Question

Linter

there, of course, further in the code, for example, there is a lot of this) but in the question I

will take only a few examples as a basis and at the same time, for example, it was not necessary to solve the problem as in addCity - I just added the output to the console using this - so that I wouldn’t swear)

And also when creating files, line Sequence - CLF and you need LF (if lint swears) - manually change in the corner but where is it configure that even when saving the file, the rule does not match.

+ Clicking on this problem and choosing a fix for this problem - or fixing all similar ones - does not work.

Expected to return a value at the end of arrow function.

Expected 'this' to be used by class method 'findCity'.

async addCity(name, code) {
    const city = new CityScheme({ name, code });

    await city.save((err) => {
      if (err) throw err;

      console.log(`city successfully saved. name - ${this.getNameCity()}`);
    });
  }

  findCity(id) {
    return new Promise((resolve, reject) => {
      cityScheme.find({
        _id: id,
      })
        .exec((err, ff) => {
          if (err) {
            return reject(err);
          }
          resolve(ff);
        });
    });
  }

Expected 'this' to be used by class method 'checkUserCity'.

checkUserCity(user) {
    if (user === false || user[0].city === null || user === true) {
      return true;
    }
    return false;
  }