Frank Carver's Punch Barrel

How’s this for an extreme opinion:

If you use an ‘if’ you deserve to suffer at Mark Needham

I actually agree with some of his conclusions, although I am surprised that he does not suggest the simple approach of extracting a method to eliminate the potential confusion of multiple statements depending on an “if”. For example, replace:

class Whatever {
  public void thing() {
    if(thisHappens()) {
      doThis();
      doThat();
    }
  }
}

with

class Whatever {
  private void thisAndThat() {
      doThis();
      doThat();
  }
 
  public void thing() {
    if (thisHappens()) thisAndThat();
  }
}

Seems less trouble than a forced polymorphism approach, at least until polymorphism and the strategy pattern is actually needed.