Documentation tells you what a feature does. A good teacher shows you when to use it and lets you try it. The AI Coding Tutor builds that kind of short lesson around one concept, such as async/await in JavaScript, SQL joins or recursion in Python.
Each lesson follows six steps, a plain definition with an everyday analogy, when to use the concept and when not to, how it works, two or three runnable examples of growing difficulty with their output, three common mistakes, and an exercise whose solution sits at the very bottom, so you can try first.
Add the language and your level, beginner, intermediate or advanced, and the lesson fits you. If you leave them out, it picks the most common language for the concept, assumes a beginner and tells you so. It is part of the Developer tools family.
What you get
- A plain-language definition with an everyday analogy
- When to use the concept and when to avoid it
- A step-by-step explanation of how it works
- Two or three runnable examples in fenced code blocks, each followed by its expected output
What you fill in
- Concept to learn required
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Add the language and your level (beginner, intermediate or advanced) for a lesson that fits you.
How to use it, step by step
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Open Coding Tutor
It sits in the Developer tools family of the workspace. The form has one field, Concept to learn.
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Name the concept, the language and your level
For example, list comprehensions in Python, intermediate. One concept per lesson works better than a whole topic.
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Choose the output language and generate
Explanations follow the language you choose. Code identifiers stay in English, as in real projects.
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Run the examples, then do the exercise
Copy each example into your editor and compare the result with the expected output. Try the exercise before scrolling to the solution.
Example, input and output
Input
- concept
- Recursion in Python, beginner
Output
Recursion is when a function calls itself to solve a smaller version of the same problem. Think of Russian nesting dolls: you open one and find a smaller one inside, until you reach the last doll, which does not open.
## Why it matters
Use it for problems that contain smaller copies of themselves, such as folders inside folders. Avoid it for simple loops, where a `for` is clearer.
## How it works
1. A base case stops the calls.
2. A recursive case calls the function on a smaller input.
## Worked examples
```python
def countdown(n):
if n == 0:
print("Go!")
return
print(n)
countdown(n - 1)
countdown(3)
```
Expected output
```
3
2
1
Go!
```
## Common mistakes
- Forgetting the base case.
- Not making the input smaller.
- Using recursion where a loop is simpler.
## Practice
Write `total(n)` that returns the sum of the numbers from 1 to n.
## Solution
```python
def total(n):
if n == 0:
return 0
return n + total(n - 1)
```
Illustrative example written by the editorial team to show the expected format.
Tips for better results
- Ask for one concept per lesson. Closures in JavaScript gets a better lesson than all of JavaScript functions.
- Be honest about your level. An advanced lesson skips the basics you might still need.
Who uses it, and for what
Self-taught developers
Fill a gap, such as Promises or SQL indexes, with a lesson you can finish in one sitting.
Bootcamp and university students
Get a second explanation of a topic from class, with an exercise to check you understood it.
Developers switching languages
Learn how a concept you know, such as error handling, works in a new language.
Mentors preparing a session
Generate a base lesson on a topic and adapt it to the person you are coaching.
Limits and good practice
- It writes a short lesson, not a full course or a learning path.
- Examples target current stable versions, so older runtimes may need small changes.
- With a low length setting a lesson with examples can be cut short, so raise the maximum length for this tool.
- Each generation uses credits from your plan, see pricing or create an account.
Frequently asked questions
Can AI teach me to code?
It can teach you one concept at a time, with an explanation, runnable examples and an exercise. Use the lessons to fill gaps or review topics, alongside your own projects.
What should I write in the Concept to learn field?
A single concept, the language and your level, for example SQL JOINs, beginner, or async/await in JavaScript, intermediate. If you leave out the language or the level, the tutor chooses the most common language for the concept, assumes a beginner and states it in one line.
Are the code examples runnable?
They are written to run on current stable versions of the language, and each one is followed by the output you should see. Copy them into your editor and run them. An older environment may need a small change.
Is there an exercise with a solution?
Yes. Every lesson ends with one practice exercise. The solution is placed in a separate section at the very end, so you can try on your own before looking. There is often more than one correct answer.
How is the Coding Tutor different from the Code Explainer?
The Coding Tutor starts from a concept and builds a lesson with new examples. The Code Explainer starts from code you already have and explains what it does. Use the first to learn a topic, the second to understand a snippet.
Try it in your workspace
Start free, no credit card needed. When you need more, one suite grows with you, from Lite to Agency.
Sign in or create a free account, the tool opens in your workspace.