Useful Links

This page aims to give you the best links for working as a developer and improving your skills.
This developer roadmap​
gives a very good overview of what a senior developer should know or be aware
of in the modern front-end, back-end or devops world. It's useful as
something to aim for, but remember it's impossible to be extremely
good at all of this so don't feel overwhelmed!
Front-end development
The Front-end Developer Handbook​
is an amazing resource containing everything related to front-end development.
There's a lot here so only focus on the sections you want to learn.
​DevDocs is great for quickly finding documentation
Software craftsmanship
You should code with these programming principles in mind. 
Focus on what's in the Generic section — the Inter-Module/Class
and Module/Class sections are relevant for object-oriented programming
(OOP) developers
​Decent Code is a thorough guide on good programming practices to create quality code
​Commit Messages Guide is a guide on good practices for writing commit messages
Professionalism
​Don't Call Yourself A Programmer is a really excellent article which gives you advice on how to be professional and confident
Algorithms and data structures
​bigocheatsheet.com — Big-O cheat sheet
​visualgo.net — visualises data structures and algorithms through animation
Free developer resources
​free-for.dev — contains a list of software
that have free tiers for developers
​public-apis — contains a list
of free APIs
Developer tools
​Remote Tools — contains a list of tools
useful in the life of a developer
​Awesome Design Tools — contains a big
list of design tools
Surveys
​StackOverFlow Developer Survey Results 2019​
​State of JS 2019​
​State of CSS 2019​
​Screen Reader User Survey #7 Results​
Games and quizzes
​CSS Diner — practice CSS selectors
​Flexbox Froggy — practice CSS flexbox
​Flexbox Defence — practice CSS flexbox
​Flexbox Zombies - master CSS flexbox
​Grid Garden — practice CSS grid
​SQL Zoo — practice SQL
​SQL Bolt — practice SQL
​Learn Git branching — practice Git branching
​Oh My Git! - play the Git game

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Contents

Front-end development

Software craftsmanship

Professionalism

Algorithms and data structures

Free developer resources

Developer tools

Surveys

Games and quizzes