Introdução ao Clean Code Meetup

De onde saiu essa ideia?

The Book

Single Responsibility Principle
Open/Closed Principle
Liskov Substituiion Principle
Interface Segregation Principle
Dependency Inversion Principle

Luciano Ramalho

# Python: check that password as at least one lowercase 
# letter, one uppercase and three digits 
def check(password): 
    return (any(c.islower() for c in password) 
            and any(c.isupper() for c in password) 
            and sum(c.isdigit() for c in password) >= 3)

David Beazley

from collections import Counter 
from unicodedata import category 
def check(password): 
    c = Counter(category(ch) for ch in password) 
    return c['Ll']>=1 and c['Lu'] >= 1 and c['Nd'] >= 3
                        

Julio Biason

LOWERCASE_CHARS = "Ll" 
UPCASE_CHARS = "Lu" 
NUMBERS = "Nd" 

def check(password): 
    number_of = Counter(category(ch) for ch in password) 
    return number_of[LOWERCASE_CHARS] >= 1 and number_of[UPCASE_CHARS] >= 1 and number_of[NUMBERS] >= 3
                        

"Programs must be written for people to read, and only incidentally for machines to execute."

Abelson / Sussman, "Structure and Interpretation of Computer Programs"

Regras

one man's rubbish may be another's treasure

Hector Urquhart

Perguntas?