Editorial Standards
How LearnCodingFast writes, tests and updates its free coding lessons and 880+ term dictionary, and who is behind them.
Every lesson is structured to take you from beginner to advanced, one small step at a time. We keep the language plain so the idea lands before the syntax does.
How they are written: lessons are drafted with AI assistance against the structure below, then reviewed and published by me. I would rather tell you that plainly than let you assume otherwise — and it is why the correction route below matters, and why every report gets acted on.
- A worked example that walks through the concept line by line.
- A guided “your turn” practice with the expected output, so you always know what success looks like.
- A small challenge to lock in what you just learned.
Where the language a lesson teaches can run in a browser, it does: 523 of our 1,624 lessons let you change the code and run it — or, for Markdown, watch it render as you type. The other 1,101 teach something the browser can't run here: compiled and server-side languages (Java, C++, C#, Go, Rust, Swift, Kotlin, PHP, Ruby, R, Node.js, the shell), frameworks that need a server or a build step (Django, Flask, React, TypeScript), charts (Matplotlib) and model replies (Prompt Engineering). Those show the code with its output and a copy button and, for most languages, a link to a free online compiler; some also carry a small editor for plain Python or JavaScript examples. We would rather say that than imply a Run button that runs the real thing.
In Python, JavaScript, TypeScript, Java, C++, C#, Ruby, PHP, Go, Rust, SQL and Lua, the expected output shown beside an example is not typed from memory: every build extracts the snippets, runs them, and compares what they print to what the page claims. A mismatch fails the build and does not ship. Code that cannot run unattended — it waits for keyboard input, needs a browser or a server, or loops forever on purpose — is not re-run. R examples are run the same way on the machine the lessons are written on, but not yet on every build. Kotlin and Swift have no runtime on our build machine yet, so their output panels are not machine-checked. CSS and Markdown examples that state a result are checked by measuring the rendered page in a real browser. We use modern, current syntax rather than dated copy-paste snippets that no longer work. If an example does not do what the lesson says it does, that is a bug and I want to hear about it.
Our Coding Dictionary holds 880+ terms, each defined in plain English — most with a short code example, and many with links to the lessons that teach them — so a word you read in a tutorial is rarely a dead end.
We fix errors quickly and keep examples current as languages evolve. If you spot a mistake — a typo, an outdated snippet, or output that doesn’t match — please tell us. Reader reports are one of the best ways we keep the site accurate.
I’m Brayan K, the founder of LearnCodingFast. I’ve been learning to code since late 2024, after getting curious about how games and apps are actually built, and I’ve since developed a fitness app with more projects on the way. Lessons here are drafted with AI assistance, then reviewed and published by me — I’m accountable for everything on this site, and corrections come to me.
The core lessons, projects, cheat sheets and the dictionary are free. No paywall sits between you and learning to code — that’s the whole point of the site.
- Editorial Standards
How we teach, verify our code, and keep LearnCodingFast accurate and free.
We want you to trust what you learn here. This page explains, honestly, how our lessons are made and how we check them — so you know exactly what stands behind every example.
Our promise is simple: teach clearly, verify the code, fix mistakes fast, and keep it free. If we ever fall short of that, we want to hear about it.
Ready to start learning?
Lessons follow the structure above, and in the languages our build can run, every output it can re-run is checked on every build.