How to Find the Stinky parts of your Code

TL;DR: A Compilation of bad smells in code.

The code smells badly.

Let's see how to change the aromas.

In this series, we will see several symptoms and situations that make us doubt the quality of our development. We will present possible solutions.

Most of these smells are just hints of something that might be wrong. They are not rigid rules.

Code Smells

Code Smell 01 - Anemic Models

Maxi Contieri ・ Oct 20 '20

#codenewbie #oop #beginners #computerscience

Code Smell 02 - Constants and Magic Numbers

Maxi Contieri ・ Oct 21 '20

#beginners #codenewbie #100daysofcode #codequality

Code Smell 149 - Optional Chaining

Maxi Contieri ・ Jul 16 '22

#javascript #webdev #beginners #programming

Code Smell 04 - String Abusers

Maxi Contieri ・ Oct 23 '20

#codenewbie #tutorial #codequality #learning

Code Smell 05 - Comment Abusers

Maxi Contieri ・ Oct 24 '20

#codenewbie #tutorial #beginners

Code Smell 06 - Too Clever Programmer

Maxi Contieri ・ Oct 25 '20

#codenewbie #tutorial #beginners

Code Smell 07 - Boolean Variables

Maxi Contieri ・ Oct 26 '20

#codenewbie #tutorial #beginners

Code Smell 08 - Long Chains Of Collaborations

Maxi Contieri ・ Oct 27 '20

#beginners #codenewbie #oop #100daysofcode

Code Smell 09 - Dead Code

Maxi Contieri ・ Oct 28 '20

#codenewbie #tutorial

Code Smell 10 - Too Many Arguments

Maxi Contieri ・ Oct 29 '20

#codenewbie #beginners #100daysofcode #oop

Code Smell 11 - Subclassification for Code Reuse

Maxi Contieri ・ Oct 30 '20

#oop #codenewbie #tutorial

Code Smell 12 - Null

Maxi Contieri ・ Oct 31 '20

#codenewbie #tutorial #oop

Code Smell 13 - Empty Constructors

Maxi Contieri ・ Nov 1 '20

#codenewbie #oop #beginners #coding

Code Smell 14 - God Objects

Maxi Contieri ・ Nov 2 '20

#codenewbie #oop #tutorial #development

Code Smell 15 - Missed Preconditions

Maxi Contieri ・ Nov 3 '20

#codenewbie #oop #tutorial

Code Smell 16 - Ripple Effect

Maxi Contieri ・ Nov 4 '20

#programming #tutorial #beginners

Code Smell 17 - Global Functions

Maxi Contieri ・ Nov 5 '20

#codenewbie #development #tutorial

Code Smell 18 — Static Functions

Maxi Contieri ・ Nov 6 '20

#codenewbie #tutorial #development #coding

Code Smell 19 — Optional Arguments

Maxi Contieri ・ Nov 7 '20

#codenewbie #oop #tutorial

Code Smell 20 - Premature Optimization

Maxi Contieri ・ Nov 8 '20

#oop #developing #coding #codesmell

Code Smell 21 - Anonymous Functions Abusers

Maxi Contieri ・ Nov 10 '20

#codenewbie #oop #developing #programming

Code Smell 22 - Helpers

Maxi Contieri ・ Nov 12 '20

#oop #helpers #codenewbie #beginners

Code Smell 23 - Instance Type Checking

Maxi Contieri ・ Nov 13 '20

#oop #beginners #tutorial

Code Smell 24 - Boolean Coercions

Maxi Contieri ・ Nov 14 '20

#oop #tutorial #boolean #coercion

Code Smell 25 - Pattern Abusers

Maxi Contieri ・ Nov 15 '20

#oop #tutorial #programming #patterns

Code Smell 26 - Exceptions Polluting

Maxi Contieri ・ Nov 16 '20

#oop #exceptions #tutorial #programming

Code Smell 27 - Associative Arrays

Maxi Contieri ・ Nov 18 '20

#oop #webdev #codenewbie #tutorial

Code Smell 28 - Setters

Maxi Contieri ・ Nov 19 '20

#oop #codenewbie #programming #webdev

Code Smell 29 - Settings/Configs

Maxi Contieri ・ Nov 20 '20

#oop #webdev #tutorial #codenewbie

Code Smell 30 - Mocking Business

Maxi Contieri ・ Nov 21 '20

#testing #webdev #programming #tdd

Code Smell 31 - Accidental Methods on Business Objects

Maxi Contieri ・ Nov 22 '20

#oop #codenewbie #programming #healthydebate

Code Smell 32 - Singletons

Maxi Contieri ・ Nov 23 '20

#codenewbie #tutorial #webdev #programming

Code Smell 33 - Abbreviations

Maxi Contieri ・ Nov 24 '20

#oop #codenewbie #programming #tutorial

Code Smell 34 - Too Many Attributes

Maxi Contieri ・ Nov 25 '20

#oop #codenewbie #programming

Code Smell 35 - State as Properties

Maxi Contieri ・ Nov 27 '20

#oop #tutorial #webdev #programming

Code Smell 36 - Switch/case/elseif/else/if statements

Maxi Contieri ・ Nov 28 '20

#oop #webdev #tutorial #codenewbie

Code Smell 37 - Protected Attributes

Maxi Contieri ・ Nov 29 '20

#oop #webdev #tutorial #codenewbie

Code Smell 38 - Abstract Names

Maxi Contieri ・ Nov 30 '20

#oop #codenewbie #naming #webdev

Code Smell 39 - new Date()

Maxi Contieri ・ Dec 1 '20

#oop #codenewbie #tutorial #globals

Code Smell 40 - DTOs

Maxi Contieri ・ Dec 2 '20

#oop #programming #tutorial #codenewbie

Code Smell 41 - Regular Expression Abusers

Maxi Contieri ・ Dec 3 '20

#oop #webdev #codenewbie #tutorial

Code Smell 42 - Warnings/Strict Mode Off

Maxi Contieri ・ Dec 4 '20

#oop #codenewbie #webdev #tutorial

Code Smell 43 - Concrete Classes Subclassified

Maxi Contieri ・ Dec 5 '20

#oop #codenewbie #tutorial #webdev

Code Smell 44 - Magic Corrections

Maxi Contieri ・ Dec 7 '20

#oop #programming #codenewbie #webdev

Code Smell 45 - Not Polymorphic

Maxi Contieri ・ Dec 7 '20

#oop #codesmell #webdev #cleancode

Code Smell 46 - Repeated Code

Maxi Contieri ・ Dec 8 '20

#oop #codenewbie #tutorial #webdev

Code Smell 47 - Diagrams

Maxi Contieri ・ Dec 9 '20

#oop #codenewbie #tutorial #webdev

Code Smell 48 - Code Without Standards

Maxi Contieri ・ Dec 10 '20

#oop #webdev #codenewbie #tutorial

Code Smell 49 - Caches

Maxi Contieri ・ Dec 11 '20

#oop #webdev #codenewbie #caching

Code Smell 50 - Object Keys

Maxi Contieri ・ Dec 12 '20

#oop #codenewbie #tutorial #webdev

Code Smell 51 - Double Negatives

Maxi Contieri ・ Dec 24 '20

#codenewbie #tutorial #programming #oop

Code Smell 52 - Fragile Tests

Maxi Contieri ・ Jan 4 '21

#codesmell #tutorial #codenewbie #webdev

Code Smell 53 - Explicit Iteration

Maxi Contieri ・ Jan 5 '21

#codenewbie #webdev #cleancode #tutorial

Code Smell 54 - Anchor Boats

Maxi Contieri ・ Jan 6 '21

#codenewbie #webdev #tutorial #cleancode

Code Smell 55 - Object Orgy

Maxi Contieri ・ Jan 17 '21

#codenewbie #codesmell #webdev #tutorial

Code Smell 56 - Preprocessors

Maxi Contieri ・ Jan 18 '21

#codenewbie #tutorial #programming #codesmell

Code Smell 57 - Versioned Functions

Maxi Contieri ・ Jan 20 '21

#codenewbie #codesmell #webdev #tutorial

Code Smell 58 - Yo-yo Problem

Maxi Contieri ・ Jan 24 '21

#codenewbie #codesmell #tutorial #webdev

Code Smell 59 - Basic / Do Functions

Maxi Contieri ・ Jan 27 '21

#webdev #codenewbie #cleancode #tutorial

Code Smell 60 - Global Classes

Maxi Contieri ・ Jan 31 '21

#codenewbie #tutorial #webdev #programming

Code Smell 61 - Coupling to Classes

Maxi Contieri ・ Feb 4 '21

#webdev #tutorial #codenewbie #programming

Code Smell 62 - Flag Variables

Maxi Contieri ・ Feb 8 '21

#programming #oop #webdev #tutorial

Code Smell 63 - Feature Envy

Maxi Contieri ・ Mar 23 '21

#codenewbie #programming #oop #webdev

Code Smell 64 - Inappropriate Intimacy

Maxi Contieri ・ Mar 27 '21

#codenewbie #codesmell #webdev #oop

Code Smell 65 - Variables Named After Types

Maxi Contieri ・ Apr 2 '21

#codenewbie #codesmells #oop #webdev

Code Smell 66 - Shotgun Surgery

Maxi Contieri ・ Apr 5 '21

#codenewbie #tutorial #oop #webdev

Code Smell 67 - Middle Man

Maxi Contieri ・ Apr 12 '21

#webdev #codenewbie #tutorial #oop

Code Smell 68 - Getters

Maxi Contieri ・ Apr 29 '21

#codenewbie #tutorial #oop #programming

Code Smell 69 - Big Bang (JavaScript Ridiculous Castings)

Maxi Contieri ・ May 4 '21

#codenewbie #oop #programming #webdev

Code Smell 70 - Anemic Model Generators

Maxi Contieri ・ May 18 '21

#codenewbie #tutorial #beginners #programming

Code Smell 71 - Magic Floats Disguised as Decimals

Maxi Contieri ・ May 24 '21

#webdev #javascript #programming #codenewbie

Code Smell 72 - Return Codes

Maxi Contieri ・ May 28 '21

#webdev #programming #codenewbie #tutorial

Code Smell 73 - Exceptions for Expected Cases

Maxi Contieri ・ May 31 '21

#webdev #codenewbie #cleancode #oop

Code Smell 74 - Empty Lines

Maxi Contieri ・ Jun 4 '21

#codenewbie #tutorial #oop #programming

Code Smell 75 - Comments Inside a Method

Maxi Contieri ・ Jun 5 '21

#codenewbie #tutorial #oop #programming

Code Smell 76 - Generic Assertions

Maxi Contieri ・ Jun 7 '21

#webdev #testing #testdev #tutorial

Code Smell 77 - Timestamps

Maxi Contieri ・ Jun 9 '21

#oop #programming #webdev #tutorial

Code Smell 78 - Callback Hell

Maxi Contieri ・ Jun 11 '21

#javascript #node #oop #tutorial

Code Smell 79 - TheResult

Maxi Contieri ・ Jun 14 '21

#webdev #programming #oop #tutorial

Code Smell 80 - Nested Try/Catch

Maxi Contieri ・ Jun 16 '21

#oop #exceptions #tutorial #webdev

Code Smell 81 - Result

Maxi Contieri ・ Jun 19 '21

#oop #programming #codenewbie #tutorial

Code Smell 82 - Tests Violating Encapsulation

Maxi Contieri ・ Jun 25 '21

#codenewbie #webdev #tutorial #programming

Code Smell 83 - Variables Reassignment

Maxi Contieri ・ Jul 14 '21

#oop #webdev #programming #codenewbie

Code Smell 84 - Max < Min (Javascript)

Maxi Contieri ・ Jul 20 '21

#javascript #oop #programming #codenewbie

Code Smell 85 - And Functions

Maxi Contieri ・ Aug 21 '21

#oop #programming #webdev #codenewbie

Code Smell 86 - Mutable Const Arrays

Maxi Contieri ・ Aug 25 '21

#javascript #oop #programming #codenewbie

Code Smell 87 - Inconsistent Parameters Sorting

Maxi Contieri ・ Sep 26 '21

#programming #webdev #codenewbie #functional

Code Smell 87 - Inconsistent Parameters Sorting

Maxi Contieri ・ Sep 26 '21

#programming #webdev #codenewbie #functional

Code Smell 89 - Math Feature Envy

Maxi Contieri ・ Oct 4 '21

#oop #webdev #cleancode #tutorial

Code Smell 90 - Implementative Callback Events

Maxi Contieri ・ Oct 7 '21

#javascript #webdev #beginners #tutorial

Code Smell 91 - Test Asserts without Description

Maxi Contieri ・ Oct 8 '21

#testing #poo #tutorial #webdev

Code Smell 92 - Isolated Subclasses Names

Maxi Contieri ・ Oct 11 '21

#poo #webdev #python #javascript

Code Smell 93 - Send me Anything

Maxi Contieri ・ Oct 13 '21

#oop #programming #webdev #javascript

Code Smell 90 - Implementative Callback Events

Maxi Contieri ・ Oct 7 '21

#javascript #webdev #beginners #tutorial

Code Smell 95 - Premature Classification

Maxi Contieri ・ Oct 16 '21

#oop #programming #webdev #tutorial

Code Smell 96 - My Objects

Maxi Contieri ・ Oct 25 '21

#oop #programming #webdev #tutorial

Code Smell 97 - Error Messages Without Empathy

Maxi Contieri ・ Oct 27 '21

#opensource #ux #programming #javascript

Code Smell 98 - Speling Mistakes

Maxi Contieri ・ Oct 29 '21

#oop #programming #tutorial #javascript

Code Smell 99 - First Second

Maxi Contieri ・ Nov 1 '21

#oop #tutorial #webdev #cleancode

Code Smell 100 - GoTo

Maxi Contieri ・ Nov 6 '21

#poo #codesmell #cleancode #programming

Code Smell 101 - Comparison Against Booleans

Maxi Contieri ・ Nov 11 '21

#webdev #beginners #programming #tutorial

Code Smell 102 - Arrow Code

Maxi Contieri ・ Nov 15 '21

#oop #javascript #cleancode #refactoring

Code Smell 103 - Double Encapsulation

Maxi Contieri ・ Nov 19 '21

#oop #solidity #web3 #beginners

Code Smell 104 - Assert True

Maxi Contieri ・ Nov 21 '21

#poo #testing #tdd #cleancode

Code Smell 105 - Comedian Methods

Maxi Contieri ・ Nov 23 '21

#poo #naming #cleancode #codesmells

Code Smell 106 - Production Dependent Code

Maxi Contieri ・ Nov 27 '21

#webdev #cleancode #oop #tutorial

Code Smell 107 - Variables Reuse

Maxi Contieri ・ Dec 1 '21

#oop #programming #webdev #tutorial

Code Smell 108 - Float Assertions

Maxi Contieri ・ Dec 3 '21

#oop #tutorial #codenewbie #cleancode

Code Smell 109 - Automatic Properties

Maxi Contieri ・ Dec 7 '21

#oop #webdev #codenewbie #tutorial

Code Smell 110 - Switches With Defaults

Maxi Contieri ・ Dec 15 '21

#oop #cleancode #codesmells #tutorial

Code Smell 111 - Modifying Collections While Traversing

Maxi Contieri ・ Dec 19 '21

#oop #programming #cleancode #codesmell

Code Smell 112 - Testing Private Methods

Maxi Contieri ・ Dec 29 '21

#oop #testing #webdev #tutorial

Code Smell 113 - Data Naming

Maxi Contieri ・ Jan 5 '22

#oop #webdev #database #refactoring

Code Smell 114 - Empty Class

Maxi Contieri ・ Feb 12 '22

#oop #tutorial #cleancode #webdev

Code Smell 115 - Return True

Maxi Contieri ・ Feb 20 '22

Code Smell 116 - Variables Declared With 'var'

Maxi Contieri ・ Feb 23 '22

Code Smell 117 - Unrealistic Data

Maxi Contieri ・ Mar 3 '22

#oop #javascript #tutorial #webdev

Code Smell 118 - Return False

Maxi Contieri ・ Mar 5 '22

Code Smell 119 - Stairs Code

Maxi Contieri ・ Mar 8 '22

Code Smell 120 - Sequential IDs

Maxi Contieri ・ Mar 10 '22

Code Smell 121 - String Validations

Maxi Contieri ・ Mar 13 '22

Code Smell 122 - Primitive Obsession

Maxi Contieri ・ Mar 17 '22

#oop #webdev #tutorial #beginners

Code Smell 123 - Mixed 'What' and 'How'

Maxi Contieri ・ Mar 22 '22

Code Smell 124 - Divergent Change

Maxi Contieri ・ Mar 24 '22

Code Smell 125 - 'IS-A' Relationship

Maxi Contieri ・ Mar 26 '22

Code Smell 126 - Fake Null Object

Maxi Contieri ・ Apr 2 '22

Code Smell 127 - Mutable Constants

Maxi Contieri ・ Apr 5 '22

#tutorial #webdev #javascript #beginners

Code Smell 128 - Non English Coding

Maxi Contieri ・ Apr 9 '22

#codenewbie #webdev #tutorial #beginners

Code Smell 129 - Structural Optimizations

Maxi Contieri ・ Apr 12 '22

#javascript #beginners #programming #tutorial

Code Smell 130 - AddressImpl

Maxi Contieri ・ Apr 18 '22

#codenewbie #tutorial #webdev #java

Code Smell 131 - Zero Argument Constructor

Maxi Contieri ・ Apr 22 '22

Code Smell 132 - Exception Try Too Broad

Maxi Contieri ・ May 18 '22

#python #programming #cleancode #webdev

Code Smell 133 - Hardcoded IF Conditions

Maxi Contieri ・ May 20 '22

#webdev #beginners #tutorial #programming

Code Smell 134 - Specialized Business Collections

Maxi Contieri ・ May 22 '22

#oop #webdev #java #tutorial

Code Smell 135 - Interfaces With just One Realization

Maxi Contieri ・ May 26 '22

#java #programming #webdev #tutorial

Code Smell 136 - Classes With just One Subclass

Maxi Contieri ・ May 28 '22

Code Smell 137 - Inheritance Tree Too Deep

Maxi Contieri ・ May 31 '22

#oop #javascript #tutorial #python

Code Smell 138 - Packages Dependency

Maxi Contieri ・ Jun 3 '22

#javascript #npm #node #security

Code Smell 139 - Business Code in the User Interface

Maxi Contieri ・ Jun 9 '22

#oop #webdev #javascript #beginners

Code Smell 140 - Short Circuit Evaluation

Maxi Contieri ・ Jun 13 '22

#webdev #javascript #beginners #programming

Code Smell 141 - IEngine , AVehicle, ImplCar

Maxi Contieri ・ Jun 18 '22

#webdev #javascript #beginners #programming

Code Smell 142 - Queries in Constructors

Maxi Contieri ・ Jun 20 '22

#oop #java #programming #database

Code Smell 143 - Data Clumps

Maxi Contieri ・ Jun 22 '22

#webdev #javascript #beginners #programming

Code Smell 144 - Fungible Objects

Maxi Contieri ・ Jun 25 '22

#webdev #beginners #programming #tutorial

Code Smell 145 - Short Circuit Hack

Maxi Contieri ・ Jun 30 '22

#webdev #beginners #programming #tutorial

Code Smell 146 - Getter Comments

Maxi Contieri ・ Jul 2 '22

#javascript #webdev #beginners #programming

Code Smell 147 - Too Many Methods

Maxi Contieri ・ Jul 6 '22

#webdev #beginners #programming #java

Code Smell 148 - ToDos

Maxi Contieri ・ Jul 13 '22

#javascript #webdev #beginners #programming

Code Smell 149 - Optional Chaining

Maxi Contieri ・ Jul 16 '22

#javascript #webdev #beginners #programming

Code Smell 150 - Equal Comparison

Maxi Contieri ・ Jul 19 '22

#javascript #webdev #beginners #programming

Code Smell 151 - Commented Code

Maxi Contieri ・ Jul 22 '22

#javascript #webdev #beginners #programming

Code Smell 152 - Logical Comment

Maxi Contieri ・ Jul 24 '22

#javascript #webdev #beginners #programming

Code Smell 153 - Too Long Names

Maxi Contieri ・ Jul 29 '22

#javascript #webdev #beginners #programming

Code Smell 154 - Too Many Variables

Maxi Contieri ・ Jul 31 '22

#webdev #beginners #programming #tutorial

Code Smell 155 - Multiple Promises

Maxi Contieri ・ Aug 3 '22

#javascript #webdev #beginners #programming

Code Smell 156 - Implicit Else

Maxi Contieri ・ Aug 6 '22

#javascript #webdev #beginners #programming

Code Smell 157 - Balance at 0

Maxi Contieri ・ Aug 10 '22

#webdev #beginners #programming #discuss

Code Smell 158 - Variables not Variable

Maxi Contieri ・ Aug 13 '22

#webdev #beginners #programming #tutorial

CoDe SmElL 159 - mIxEd_cASe

Maxi Contieri ・ Aug 19 '22

#javascript #webdev #beginners #programming

Code Smell 160 - Invalid Id = 9999

Maxi Contieri ・ Aug 30 '22

Code Smell 161 - Abstract/Final/Undefined Classes

Maxi Contieri ・ Sep 2 '22

#webdev #beginners #programming #java

Code Smell 162 - Too Many Parentheses

Maxi Contieri ・ Sep 10 '22

#javascript #webdev #beginners #programming

Code Smell 163 - Collection in Name

Maxi Contieri ・ Sep 16 '22

#javascript #webdev #beginners #programming

Code Smell 164 - Mixed Indentations

Maxi Contieri ・ Sep 21 '22

#javascript #webdev #beginners #programming

Code Smell 165 - Empty Exception Blocks

Maxi Contieri ・ Sep 24 '22

#webdev #beginners #programming #python

Code Smell 166 - Low-Level Errors on User Interface

Maxi Contieri ・ Sep 28 '22

#webdev #beginners #programming #php

Code Smell 167 - Hashing Comparison

Maxi Contieri ・ Oct 9 '22

#webdev #programming #java #blockchain

Code Smell 168 - Undocumented Decisions

Maxi Contieri ・ Oct 11 '22

#webdev #beginners #programming #tutorial

Code Smell 169 - Glued Methods

Maxi Contieri ・ Oct 15 '22

#webdev #beginners #programming

Code Smell 170 - Refactor with Functional Changes

Maxi Contieri ・ Oct 18 '22

#webdev #beginners #programming #tutorial

Code Smell 171 - Plural Classes

Maxi Contieri ・ Oct 21 '22

#webdev #beginners #programming #tutorial

Code Smell 172 - Default Argument Values Not Last

Maxi Contieri ・ Oct 22 '22

#webdev #beginners #programming #python

Code Smell 173 - Broken Windows

Maxi Contieri ・ Oct 27 '22

#webdev #beginners #programming #tutorial

Code Smell 174 - Class Name in Attributes

Maxi Contieri ・ Oct 29 '22

#javascript #webdev #beginners #programming

Code Smell 175 - Changes Without Coverage

Maxi Contieri ・ Oct 31 '22

#javascript #webdev #beginners #programming

Code Smell 176 - Changes in Essence

Maxi Contieri ・ Nov 2 '22

#webdev #javascript #beginners #programming

Code Smell 177 - Missing Small Objects

Maxi Contieri ・ Nov 5 '22

#webdev #javascript #beginners #programming

Code Smell 178 - Subsets Violation

Maxi Contieri ・ Nov 10 '22

#webdev #javascript #beginners #programming

Code Smell 179 - Known Bugs

Maxi Contieri ・ Nov 14 '22

#webdev #javascript #beginners #programming

Code Smell 180 - BitWise Optimizations

Maxi Contieri ・ Nov 19 '22

#webdev #javascript #beginners #programming

Code Smell 181 - Nested Classes

Maxi Contieri ・ Nov 22 '22

#webdev #beginners #programming #php

Code Smell 182 - Over Generalization

Maxi Contieri ・ Nov 27 '22

#emptystring

Code Smell 183 - Obsolete Comments

Maxi Contieri ・ Dec 2 '22

#webdev #javascript #beginners #programming

Code Smell 184 - Exception Arrow Code

Maxi Contieri ・ Dec 4 '22

#watercooler

Code Smell 185 - Evil Regular Expressions

Maxi Contieri ・ Dec 8 '22

#watercooler

Code Smell 186 - Hardcoded Business Conditions

Maxi Contieri ・ Dec 14 '22

#webdev #javascript #beginners #programming

ㄥ8Ɩ llǝɯS ǝpoƆ - spɹɐʍʞɔɐq ǝslƎ/ℲI

Maxi Contieri ・ Dec 17 '22

#webdev #javascript #beginners #programming

Code Smell 188 - Redundant Parameter Names

Maxi Contieri ・ Dec 24 '22

#webdev #beginners #programming #tutorial

Code Smell 189 - Not Sanitized Input

Maxi Contieri ・ Dec 28 '22

#webdev #beginners #programming #security

Code Smell 190 - Unnecessary Properties

Maxi Contieri ・ Jan 3 '23

#webdev #beginners #programming #python

Code Smell 191 - Misplaced Responsibility

Maxi Contieri ・ Jan 9 '23

#webdev #javascript #beginners #programming

Code Smell 192 - Optional Attributes

Maxi Contieri ・ Jan 17 '23

#webdev #javascript #beginners #programming

Code Smell 193 - Switch Instead of Formula

Maxi Contieri ・ Jan 27 '23

#webdev #javascript #beginners #programming

Code Smell 194 - Missing Interval

Maxi Contieri ・ Feb 4 '23

#webdev #beginners #programming #kotlin

Code Smell 195 - Yoda Conditions

Maxi Contieri ・ Feb 7 '23

#webdev #javascript #beginners #programming

Code Smell 196 - Javascript Array Constructors

Maxi Contieri ・ Feb 16 '23

#webdev #javascript #beginners #programming

Code Smell 197 - Gratuitous Context

Maxi Contieri ・ Feb 21 '23

#webdev #beginners #programming #tutorial

Code Smell 198 - Hidden Assumptions

Maxi Contieri ・ Mar 2 '23

#webdev #beginners #programming #tutorial

Code Smell 199 - Gratuitous Booleans

Maxi Contieri ・ Mar 6 '23

#webdev #beginners #programming #tutorial

Code Smell 200 - Poltergeist

Maxi Contieri ・ Mar 8 '23

#webdev #beginners #programming #tutorial

Code Smell 201 - Nested Ternaries

Maxi Contieri ・ Mar 14 '23

#webdev #javascript #beginners #programming

Code Smell 202 - God Constant Class

Maxi Contieri ・ Mar 18 '23

#webdev #javascript #beginners #programming

Code Smell 203 - Irrelevant Test Information

Maxi Contieri ・ Mar 26 '23

#webdev #beginners #programming #python

Code Smell 204 - Tests Depending on Dates

Maxi Contieri ・ Mar 28 '23

#webdev #javascript #beginners #programming

Code Smell 205 - Code in Destructors

Maxi Contieri ・ Apr 9 '23

#webdev #beginners #programming #tutorial

Code Smell 206 - Long Ternaries

Maxi Contieri ・ Apr 11 '23

#webdev #javascript #beginners #programming

Code Smell 207 - Dynamic Methods

Maxi Contieri ・ Apr 17 '23

#webdev #beginners #programming #ruby

Code Smell 208 - Null Island

Maxi Contieri ・ Apr 19 '23

#webdev #beginners #programming #kotlin

Code Smell 209 - Side Effects

Maxi Contieri ・ Apr 28 '23

#webdev #javascript #beginners #programming

Code Smell 210 - Dynamic Properties

Maxi Contieri ・ May 1 '23

#webdev #beginners #programming #tutorial

Code Smell 211 - Tab over Spaces

Maxi Contieri ・ May 6 '23

#webdev #beginners #programming #tutorial

Code Smell 212 - Elvis Operator

Maxi Contieri ・ May 13 '23

#webdev #javascript #beginners #programming

Code Smell 213 - Hoisting

Maxi Contieri ・ May 19 '23

#webdev #javascript #beginners #programming

Code Smell 214 - Duplicate Parameter Names

Maxi Contieri ・ May 26 '23

#webdev #javascript #beginners #programming

Code Smell 215 - Deserializing Object Vulnerability

Maxi Contieri ・ Jun 1 '23

#webdev #beginners #programming #security

Code Smell 216 - Fat Interface

Maxi Contieri ・ Jun 4 '23

#webdev #javascript #beginners #programming

Code Smell 217 - Empty Implementation

Maxi Contieri ・ Jun 18 '23

#webdev #javascript #beginners #programming

Code Smell 218 - Magic Concatenation

Maxi Contieri ・ Jul 16 '23

#webdev #beginners #programming #python

Code Smell 219 - Looping from index 0

Maxi Contieri ・ Jul 24 '23

#webdev #javascript #beginners #programming

Code Smell 220 - Return Tuple

Maxi Contieri ・ Aug 2 '23

#webdev #beginners #programming

Code Smell 221 - Missing Break in Switch

Maxi Contieri ・ Aug 7 '23

#webdev #beginners #programming #tutorial

Code Smell 222 - Comma Operator

Maxi Contieri ・ Aug 28 '23

#webdev #javascript #beginners #programming

Code Smell 223 - Racial Naming

Maxi Contieri ・ Sep 3 '23

#webdev #beginners #programming #tutorial

Code Smell 224 - Deodorant Comments

Maxi Contieri ・ Sep 10 '23

#webdev #beginners #programming #python

Code Smell 225 - Pass by Reference

Maxi Contieri ・ Sep 25 '23

#webdev #beginners #programming #tutorial

Code Smell 226 - Mixed Priorities

Maxi Contieri ・ Oct 3 '23

#webdev #programming #python

Code Smell 227 - Cowboy Coding

Maxi Contieri ・ Oct 15 '23

#webdev #beginners #programming #tutorial

Code Smell 228 - Multiple Classes per File

Maxi Contieri ・ Oct 21 '23

#webdev #beginners #programming #php

Code Smell 229 - Red Tape

Maxi Contieri ・ Oct 27 '23

#webdev #beginners #programming #python

Code Smell 230 - Schrödinger Code

Maxi Contieri ・ Nov 4 '23

#webdev #beginners #programming #tutorial

Code Smell 231 - Redundant Data

Maxi Contieri ・ Nov 11 '23

#webdev #programming #beginners #tutorial

Code Smell 232 - Reusable Code

Maxi Contieri ・ Nov 25 '23

#javascript #programming #webdev #tutorial

Code Smell 233 - Collections Count

Maxi Contieri ・ Dec 1 '23

#webdev #javascript #programming #beginners

Code Smell 234 - Long Circuit

Maxi Contieri ・ Dec 16 '23

#webdev #programming #beginners #python

Code Smell 235 - Console Side Effects

Maxi Contieri ・ Dec 24 '23

#webdev #javascript #programming #beginners

Code Smell 236 - Unwrapped Lines

Maxi Contieri ・ Dec 28 '23

#webdev #programming #beginners #rust

Code Smell 237 - Attribute Definitions

Maxi Contieri ・ Jan 4 '24

#webdev #javascript #beginners #programming

Code Smell 238 - Entangled Code

Maxi Contieri ・ Jan 21 '24

#webdev #beginners #programming #python

Code Smell 239 - Big Pull Request

Maxi Contieri ・ Jan 28 '24

#webdev #javascript #beginners #programming

Code Smell 240 - Dead Store

Maxi Contieri ・ Feb 4 '24

#beginners #programming #tutorial #php

Code Smell 241- Referential Transparency Violation

Maxi Contieri ・ Feb 17 '24

#webdev #beginners #programming #tutorial

Code Smell 242 - Zombie Feature Flags

Maxi Contieri ・ Feb 21 '24

#webdev #beginners #programming #java

Code Smell 243 - Concatenated Properties

Maxi Contieri ・ Mar 15 '24

Code Smell 244 - Incomplete Error information

Maxi Contieri ・ Mar 31 '24

#webdev #beginners #programming #tutorial

Code Smell 245 - exec() and eval()

Maxi Contieri ・ Apr 4 '24

#webdev #beginners #programming #python

Code Smell 246 - Expiration Date

Maxi Contieri ・ Apr 9 '24

#webdev #java #beginners #tutorial

Code Smell 247 - Javascript Replace

Maxi Contieri ・ Apr 16 '24

#webdev #javascript #beginners #programming

Code Smell 248 - Unreliable Copy

Maxi Contieri ・ Apr 20 '24

#webdev #beginners #programming #php

Code Smell 249 - Constants as Numbers

Maxi Contieri ・ Apr 25 '24

#webdev #beginners #programming #tutorial

Code Smell 250 - Premature Memoization

Maxi Contieri ・ May 1 '24

#webdev #beginners #programming #python

Code Smell 251 - Collections Empty

Maxi Contieri ・ May 11 '24

#webdev #beginners #programming #java

Code Smell 252 - NullCustomer

Maxi Contieri ・ May 17 '24

#webdev #javascript #beginners #programming

Code Smell 253 - Silent Truncation

Maxi Contieri ・ May 24 '24

#webdev #javascript #beginners #programming

Code Smell 254 - Mystery Guest

Maxi Contieri ・ Jun 3 '24

#webdev #beginners #programming #tutorial

Code Smell 255 - Parallel Hierarchies

Maxi Contieri ・ Jun 21 '24

#webdev #beginners #programming #tutorial

Code Smell 256 - Mutable Getters

Maxi Contieri ・ Jun 29 '24

#webdev #beginners #programming #java

Code Smell 257 - Name With Collections

Maxi Contieri ・ Jul 9 '24

#webdev #beginners #programming #rust

Code Smell 258 - Secrets in Code

Maxi Contieri ・ Jul 13 '24

#webdev #beginners #programming #security

Code Smell 259 - Testing with External Resources

Maxi Contieri ・ Jul 18 '24

#webdev #javascript #beginners #programming

Code Smell 260 - Crowdstrike NULL

Maxi Contieri ・ Jul 20 '24

#security #cleancode #hacking #null

Code Smell 261 - DigiCert Underscores

Maxi Contieri ・ Aug 3 '24

#webdev #programming #security #strings

Code Smell 262 - Not Replaced Constants

Maxi Contieri ・ Aug 9 '24

#webdev #beginners #programming #security

Code Smell 263 - Squatting

Maxi Contieri ・ Aug 13 '24

#webdev #beginners #programming #python

Code Smell 264 - Hanlon's Razor

Maxi Contieri ・ Aug 17 '24

#webdev #javascript #beginners #programming

Code Smell 265 - Linguistic Confusion

Maxi Contieri ・ Aug 23 '24

#webdev #beginners #programming #java

Code Smell 266 - Collection Aliasing

Maxi Contieri ・ Aug 29 '24

#webdev #java #beginners #programming

Code Smell 267 - Objects Aliasing

Maxi Contieri ・ Aug 31 '24

Code Smell 268 - Ternary Metaprogramming

Maxi Contieri ・ Sep 6 '24

#webdev #javascript #beginners #programming

Code Smell 269 - Low-Level Addition

Maxi Contieri ・ Sep 12 '24

#webdev #beginners #python #programming

Code Smell 270 - Boolean APIs

Maxi Contieri ・ Sep 19 '24

#beginners #programming #tutorial #api

Code Smell 271 - The Hollywood Principle

Maxi Contieri ・ Sep 25 '24

#webdev #javascript #beginners #programming

Code Smell 272 - API Chain

Maxi Contieri ・ Sep 30 '24

#webdev #api #softwaredevelopment #testing

Code Smell 273 - Overengineering

Maxi Contieri ・ Oct 5 '24

#webdev #beginners #programming #learning

Code Smell 274 - Cascaded Returns

Maxi Contieri ・ Oct 10 '24

#webdev #javascript #beginners #programming

Code Smell 275 - Missing Test Wrong Path

Maxi Contieri ・ Oct 14 '24

#webdev #beginners #programming

Code Smell 276 - Untested Regular Expressions

Maxi Contieri ・ Oct 24 '24

#webdev #beginners #java #programming

Code Smell 277 - UPPERCASE Acronyms

Maxi Contieri ・ Oct 30 '24

#webdev #beginners #programming #opensource

Code Smell 278 - DirName and File

Maxi Contieri ・ Nov 10 '24

#webdev #javascript #beginners #programming

Code Smell 279 - Loop Premature Optimization

Maxi Contieri ・ Nov 16 '24

#webdev #python #beginners #programming

Code Smell 280 - Spaghetti Code

Maxi Contieri ・ Nov 20 '24

#webdev #beginners #programming #tutorial

Code Smell 281 - Hashes

Maxi Contieri ・ Nov 24 '24

#webdev #programming #beginners #tutorial

Code Smell 282 - Bad Defaults

Maxi Contieri ・ Nov 30 '24

#webdev #programming #beginners #security

Code Smell 283 - Unresolved Meta Tags

Maxi Contieri ・ Dec 10 '24

#webdev #programming #beginners #php

Code Smell 284 - Encrypted Functions

Maxi Contieri ・ Dec 21 '24

#webdev #programming #security #hacking

Code Smell 285 - Non-Imperative Functions Names

Maxi Contieri ・ Jan 10

#webdev #javascript #programming #beginners

Code Smell 286 - Overlapping Methods

Maxi Contieri ・ Jan 16

#webdev #programming #php #inheritance

Code Smell 287 - Unused Local Assignment

Maxi Contieri ・ Jan 29

#webdev #javascript #programming #beginners

Code Smell 288 - Unthrown Exceptions

Maxi Contieri ・ Feb 2

#webdev #programming #beginners #python

Code Smell 289 - Shy Visitor

Maxi Contieri ・ Feb 7

#webdev #programming #beginners #ai

Code Smell 290 - Refused Bequest

Maxi Contieri ・ Feb 12

#webdev #programming #javascript #beginners

Code Smell 291 - Mutable Keys

Maxi Contieri ・ Feb 23

#webdev #cleancode #java #refactoring

... and many more to come.

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Photo by Richárd Ecsedi on Unsplash

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Smells are certain structures in the code that suggest (sometimes they scream for) the possibility of refactoring

Martin Fowler

Software Engineering Great Quotes

Maxi Contieri ・ Dec 28 '20

#codenewbie #programming #quotes #software

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Part of the objective of this series of articles is to generate spaces for debate and discussion on software design.

Object Design Checklist

Maxi Contieri ・ May 25 '21

#codenewbie #webdev #tutorial #programming

We look forward to your comments and suggestions on this article.

Original Thread on Twitter