Clean code pdf download

This book is packed with practical advice—about everything from estimating and coding to refactoring and testing. It covers much more than technique: It is about attitude. Martin shows how to approach software development with honor, self-respect, and pride; work well and work clean; communicate and estimate faithfully; face difficult decisions with clarity and honesty; and understand that deep knowledge comes with a responsibility to act. Great software is something to marvel at: powerful, elegant, functional, a pleasure to work with as both a developer and as a user.

It is written by professionals with an unshakable commitment to craftsmanship. The Clean Coder will help you become one of them—and earn the pride and fulfillment that they alone possess.

Comments 11 Functions 14 Functions The goal is to tell the story of the system. Stepdown Rule 15 Avoid output arguments Side effects are lies. Objects and Data Structures 17 Objects hide data and expose functions easy to add new objects hard to add new behaviors 18 Data Structures expose data and have no meaningful functions easy to add new behaviors hard to add new data structures Choose the approach that is best for the job.

Error Handling 20 Error Handling Write code that is clean and rebust See error handling as a separate concern Use exceptions rather than return codes Use unchecked exceptions 21 Unit Tests 23 Unit Tests Test Driven Development TDD test and production code are written together tests just a few seconds ahead Keeping tests clean Test code is just as important as production code. Thanks - Any Questions? Total views 41, On Slideshare 0. From embeds 0. Number of embeds Downloads Shares 0. Comments 0.

Likes You just clipped your first slide! Clipping is a handy way to collect important slides you want to go back to later. Now customize the name of a clipboard to store your clips. Visibility Others can see my Clipboard. Cancel Save. Exclusive 60 day trial to the world's largest digital library. Martin Maintenance does not refer to bug fixing. Now, how do you write clean code? And make it more readable by using indentation, short method, and short statement, where appropriate: Use easily pronounceable names for variables and methods.

Do not use abbreviations in the variable and method names. Use the variable name in full form so it can be easily pronounced and everyone can understand it. The purpose of the variable should be understandable to someone reading the name of the variable. Write the name as you would speak it. Show the innovation in logic, not in naming variables or methods. Having a simple name makes it understandable for everyone.

Use one word for similar functions. Go ahead, use the technical term. Your fellow programmer will understand it. Use camelCase for variable and function name.

The class should start from the capital. Always use uppercase, and separate words with underscores. Keep a function as short as possible. My ideal length of a method is up to 15 lines. Sometimes it can go longer, but the code should be conceptually clean to understand. Keep arguments to fewer than or equal to three. If arguments are greater than three, then you must think to refactor the function into a class. Behavior of class and object. One class should do one thing.

If it is for the user, then all methods must be written entirely for the user experience. If you have to add comments to explain your code, it means you need to refactor your code and create new methods. Sometimes, features change and methods need to be rewritten. Usually, we comment out the old code for fear that clients will make a U-turn and request the older version.

Remove it and make your code clean. Avoid working with a large array. Avoid making an array for a large data set; instead, use a class. That make it more readable, not to mention that it creates an additional safety for your application.

Do not repeat the code. Every time you write a method, ask yourself if something similar has already been built. Check the code library or other documentation. Define constant or use variables instead of hardcoding the values. Using the variable will not only make it readable but will also make it easy to change if it is being used at multiple places.

For future reading, check out Clean Code , by Robert C.