Beginner coding · local execution

Fix and extend a notes app

Use the educational Choorai Steps language to fix a condition and add an input-event feature that changes the live preview.

About 18 minutesBrowser onlyNo API cost

Code execution checks 0/3

Completion reflects real code-execution checks in this browser. It does not mean data was saved or deployed.

Setup and scope

A web browser is enough.
No install, account, or API key is required.

Free · runs in this browser

The editor runs a restricted educational rule language, not JavaScript or HTML. It interprets only fixed conditions and commands and cannot access the DOM, network, accounts, or APIs.

Step 1/3

Syntax guide · memo.choorai

Only allowed conditions and commands are interpreted. There is no arbitrary JavaScript, DOM access, or network connection.

note_limit: 160
on add:
  if note is not empty:
    show empty_note_error
  else:
    add note to list

Current task · run-starter

Run the starter code

Observe how the add event and condition branch run.

Expected result

Run the starter with a non-empty note. The current code has a bug and shows the wrong message.

A blank-note message appears instead of adding the note. You will fix the condition next.

Hint and recovery

Show hint

Under `on add`, the `show` command runs when the `if` condition is true; otherwise the `else` command runs.

If you do not see a result, select “Run starter” again.

Preview run by the same code

Not saved yet

memo.choorai0/100

My notes app

The rules you run control the note behavior in this preview.

There are no notes.

Pass the previous execution check first.

You can download code and notes even when browser saving is unavailable.

This is not a JavaScript/HTML lesson. A short educational language runs in a restricted interpreter. Opening the lesson or self-checking is not counted as code execution.

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Last updated: October 7, 2026 · Version: v0.0.1

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