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   1. [Introduction](#introduction)
   2. [Variables](#variables)
+     * [Use meaningful and pronounceable variable names](#use-meaningful-and-pronounceable-variable-names)
+     * [Use the same vocabulary for the same type of variable](#use-the-same-vocabulary-for-the-same-type-of-variable)
+     * [Use searchable names (part 1)](#use-searchable-names-part-1)
+     * [Use searchable names (part 2)](#use-searchable-names-part-2)
+     * [Use explanatory variables](#use-explanatory-variables)
+     * [Avoid Mental Mapping](#avoid-mental-mapping)
+     * [Don't add unneeded context](#dont-add-unneeded-context)
+     * [Use default arguments instead of short circuiting or conditionals](#use-default-arguments-instead-of-short-circuiting-or-conditionals)
   3. [Functions](#functions)
+     * [Function arguments (2 or fewer ideally)](#function-arguments-2-or-fewer-ideally)
+     * [Functions should do one thing](#functions-should-do-one-thing)
+     * [Function names should say what they do](#function-names-should-say-what-they-do)
+     * [Functions should only be one level of abstraction](#functions-should-only-be-one-level-of-abstraction)
+     * [Don't use flags as function parameters](#dont-use-flags-as-function-parameters)
+     * [Avoid Side Effects](#avoid-side-effects)
+     * [Don't write to global functions](#dont-write-to-global-functions)
+     * [Don't use a Singleton pattern](#dont-use-a-singleton-pattern)
+     * [Encapsulate conditionals](#encapsulate-conditionals)
+     * [Avoid negative conditionals](#avoid-negative-conditionals)
+     * [Avoid conditionals](#avoid-conditionals)
+     * [Avoid type-checking (part 1)](#avoid-type-checking-part-1)
+     * [Avoid type-checking (part 2)](#avoid-type-checking-part-2)
+     * [Remove dead code](#remove-dead-code)
   4. [Objects and Data Structures](#objects-and-data-structures)
+     * [Use getters and setters](#use-getters-and-setters)
+     * [Make objects have private/protected members](#make-objects-have-privateprotected-members)
   5. [Classes](#classes)
+     * [Use method chaining](#use-method-chaining)
+     * [Prefer composition over inheritance](#prefer-composition-over-inheritance)
   6. [SOLID](#solid)
      * [Single Responsibility Principle (SRP)](#single-responsibility-principle-srp)
      * [Open/Closed Principle (OCP)](#openclosed-principle-ocp)