how to write clean code course

How do I learn to write clean code?

Is clean code book for beginners?

Why is it so hard to write clean code?

How do I learn to code professionally?

Is Clean Code a must read?

What programming language is used in Clean Code book?

What are clean code principles?

How do you write a clean code in Python?

What is clean code in Java?

How should a beginner write code?

How much do coders make?

Can I learn coding on my own?

Description

In this course, you will learn how to write Clean Code. Clean code refers to the code that is easy to understand and maintain in the long term. This course is language independent, which means you can use any programming language to follow along.

Instructor

My name is Mohammad Azam and I have been programming in iOS for the last 10+ years. Currently, I am teaching Full Stack Development at DigitalCrafts. Before joining DigitalCrafts I worked as a lead mobile developer for many large companies including Schlumberger, Baker Hughes, AIG and Valic.

What is clean code?

Clean code is a reader-focused development style that produces software that's easy to write, read and maintain.

How to improve code quality?

Elevate your professionalism and increase your code quality by writing with the reader in mind! We'll walk through three core clean coding practices: 1) Select the right tool for the job. 2) Optimize the signal to noise ratio. 3) Create self-documenting logic.

Is clean coding a skill?

Clean coding is not a skill that can be acquired overnight. It is a habit that needs to be developed by keeping these principles in mind and applying them whenever you write code.

What is duplicate code?

Duplicate code means you need to change things in multiple places when there is a change in logic and it is very error prone. Use your IDE's refactoring features and extract a method whenever you come across a repeated code segment. IntelliJ Extract Method.

How to avoid disinformation?

Avoid Disinformation. Be careful about words that mean something specific. Do not refer to a grouping of accounts as accountList unless its type is actually a List. The word has a specific meaning and it may lead to false conclusions. Even if the type is a list, accounts is a simpler and better name.

How many lines should a function be?

Functions should be small, really small. They should rarely be 20 lines long. The longer a function gets, it is more likely it is to do multiple things and have side effects.

What is the root of all evil in software?

Code repetition may be the root of all evil in software. Duplicate code means you need to change things in multiple places when there is a change in logic and it is very error prone.

What is flag argument?

A flag argument is a boolean argument that is passed to a function. Two different actions are taken depending on the value of this argument. For example, say there is a function that is responsible for booking tickets to a concert and there are 2 types of users: Premium and Regular. You can have code like this:

Learn how to write readable, understandable and therefore maintainable code - step by step, in an example-driven way

As a developer, you should be able to write code which works - of course!

Your Instructor

As a self-taught professional I really know the hard parts and the difficult topics when learning new or improving on already-known languages. This background and experience enable me to focus on the most relevant key concepts and topics.

Frequently Asked Questions

The course starts now and never ends! It is a completely self-paced online course - you decide when you start and when you finish.

How to write clean code?

There are three core principles to remember when it comes to writing clean code: 1 Choose the right tool for the job 2 Optimize the signal-to-noise ratio 3 Strive to write self-documenting code

Why is clean code important?

It's foundational. Clean code principles lead to source code that's highly modular and thus easier to read and test. If you think of these practices as part of a house, clean code is the foundation. Implementing clean code principles is a foundational skill that pays off especially well when it's time to refactor code or bring code under test.

Is writing code easy?

Let’s call it how it is: Writing code is relatively easy. Reading is hard. This is why it is so tempting to rewrite rather than do the hard work of reading and comprehending existing code.

What is the most frustrating thing to see when looking at code?

Easily the most frustrating thing for another developer looking at your code is seeing a variable with a misleading name or, worse, named with a single letter.

When to use different iterator variables?

When you have a code block with multiple loops one after the other, you need different iterator variables. There is always debate about what to use, and the answer is slightly subjective, but when they’re one after another , it makes sense to declare your iterator outside of the loop and reuse it. It’s not only better to look at, as it’s always clear that “i” is your iterator variable, but it’s also slightly more efficient.

What are the key elements of agile business?

The key to surviving this new industrial revolution is leading it. That requires two key elements of agile businesses: awareness of disruptive technology and a plan to develop talent that can make the most of it.

What is a mile long function?

Mile-long function definitions are an easy way to clutter your code. Normally it’s best to take a look at what’s actually being done. If a function is doing more than its name suggests, then perhaps some of the excess functionality could be split out into its own function.

Why Write Clean Code?

You might be wondering why you should bother learning to write clean code. You may be thinking, “My code works, why does it matter how it looks?”

Tip 1. Follow conventions

Programming languages usually have a set of conventions. Conventions are a set of guidelines that help you write better code. For example, Python has PEP-8, a set of guidelines to help you write Pythonic programs.

Tip 4. Think about data structures

One of the assignments I give in The Self-Taught Programmer course is to build Rock, Paper, Scissors.

Tip 5. Use comments but only to explain something not obvious

Comments can be the finishing touch on excellent code, or they can make it worse.

Tip 6. Choose Names Carefully

When you are programming, you are continually coming up with names. You have to name functions, classes, variables, and more.

Course overview

Looking for a cost effective solution that adds business value? Talk to us to find out how we can customise the course for your business.

About the course

Our Writing Clean Code course is intended for anyone who wants to make improvements to the quality of their code - you'll be guided by an expert practitioner who will introduce you to principles and concepts supporting the construction of good Clean Code.

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How to write a unit test?

5. Write Unit Tests 1 You are not allowed to write any production code unless it is to make a failing unit test pass. 2 You are not allowed to write any more of a unit test than is sufficient to fail, and compilation failures are failures. 3 You are not allowed to write any more production code than is sufficient to pass the one failing unit test.

Why do we use comments in code?

It’s a common thing that developers use comments to specify the purpose of a line in their code. It’s true that comments are really helpful in explaining the code what it does but it also requires more maintenance of your code. In development code move here and there but if the comment remains at the same place then it can create a big problem. It can create confusion among developers and they get distracted as well due to useless comments. It’s not like that you shouldn’t use comments at all, sometimes it is important, for example…if you are dealing with third party API where you need to explain some behavior there you can use comments to explain your code but don’t write comments where it’s not necessary.#N#Today modern programming languages syntax are English like through and that’s good enough to explain the purpose of a line in your code. To avoid comments in your code use meaningful names for variables, functions or files.