JS Examples
A runnable example is worth a page of explanation. Every lesson on this site ends with one — the Try it Yourself » button opens the playground pre-loaded with the code.
Where to find runnable examples
| Location | What's there |
|---|---|
| Each lesson page | A demo snippet plus a Try it Yourself » button. |
| JS Editor | Blank multi-pane playground (HTML / CSS / JS tabs) for free-form experiments. |
| Inside the editor | Live preview pane, console panel, theme switcher, share-URL button. |
Foundational examples to start with
- Intro — say hello to the page.
- Variables —
letandconst. - Functions — three syntaxes.
- DOM — read and change the page.
- Events — react to user actions.
- Async — promises and
await.
Tip: Don't just read the example — open it in the editor, change one thing, run again. Active experimentation cements the concept faster than passive reading.
Example
Example
<!DOCTYPE html>
<html>
<body>
<p id="out"></p>
<script>
document.getElementById("out").textContent = "Hello from JS Examples!";
</script>
</body>
</html>
Try it Yourself »
Exercise
What button do you click on a lesson page to open the editor?
Click:
The green CTA on every lesson.
Discussion
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