JavaScript in VS Code

Connect JavaScript

Learn to load a local script safely and separate behaviour from content in this beginner-friendly Visual Studio Code lesson.

Learning outcomes

  • Explain how to load a local script safely.
  • Complete the guided activity safely.
  • Check that you can separate behaviour from content.

Before you begin

Use a non-sensitive practice folder, inspect unfamiliar code before trusting it, and never place passwords, tokens or private information in project files.

Open official guidance ↗

Step-by-step instructions

  1. Open the intended practice workspace in Visual Studio Code and confirm its folder name and Workspace Trust state.
  2. Create app.js and confirm it runs after the document loads.
  3. Save the relevant files and review the Problems panel, terminal, Source Control view or browser preview as appropriate.
  4. Check filenames, relative paths, console messages, keyboard use, mobile layout and privacy before continuing.
  5. Confirm that you can separate behaviour from content, then create a clear commit, backup or saved checkpoint.
Ian's practical tip: Work in one named project folder, preview after small changes, read the actual error message and keep a recoverable version before broad edits.

Practical activity

Create app.js and confirm it runs after the document loads. The expected result is to separate behaviour from content.

Completion checklist