Lab: trying out code and coding tasks

Where: Menu → Lab; coding tasks on your class’s page

In the lab you write web pages (HTML, CSS, JavaScript) with a live preview, and programs in Python, JavaScript, Go, Java or PowerShell. Programs run sealed off, without network, on the server; web pages run in a sealed-off frame in your browser. Your projects are saved by themselves.

How to

1. Under Menu → Lab, enter a name, choose the language and click “Create project”.
2. Write your code. “New file” adds more files; the program always starts with the first file (e.g. main.py).
3. Click “Try it out”. Under “Input for the program” you give it what it reads. For a web page you see the preview and the console at once.
4. “Keep this version” keeps a state you can go back to later.

Fields and buttons

• Coding tasks: When your trainer gives the class a task, it appears on your class’s page. Opening it gives you your own copy of the starting files. “Hand in” keeps the current state for the trainer; hidden tests check it if the task has any.
• Who decides: Depending on the task, the tests decide, the trainer decides, or the tests check first and the trainer decides. If the trainer returns your submission for changes, you can hand it in again.
• Code tile in the Creative Space: On the canvas, choose a language in the code tile: the program then runs at the press of a button, or the web page appears as a preview beside it. “Copy to my lab” turns it into a project.

Tip

• Learners from the public catalogue use the lab with Pro; running programs on the server isn’t switched on for them yet, web pages run in the browser.
• “Run in a terminal” starts the program so you can type while it runs, e.g. answers to input() or Read-Host.
• Under “Edit together” you share a project with people of your organisation; everyone sees the others’ changes and cursors at once.
• For each coding task you get a conversation in your inbox: the task, your trainer’s decision and room for questions. Comments on single lines are shown with your submission.