Introduction to Edge
Run code close to your users.
What Edge is, why it matters, and how to navigate this track.
Edge is a cloud platform. Run code close to your users.
What is Edge?
Edge is a cloud platform used across modern software. Run code close to your users.
This track introduces Edge from first principles, then goes deeper through the Deep, Reference, and Cheatsheet tabs.
Why learn Edge?
- Edge is widely used in industry and worth understanding well.
- Each topic pairs a clear explanation with hands-on examples.
- You can revisit any concept in the Reference tab or grab the Cheatsheet for quick recall.
Where it is used
- Hosting & scaling
- Serverless functions
- Cloud infrastructure
How this track works
Every topic here has four views, switchable with the tabs at the top of each page:
- Learn — the clear, practical walkthrough you are reading now.
- Deep — every detail: edge cases, the full API, and what is really happening.
- Reference — a scannable, no-fluff lookup for when you already know the shape.
- Cheatsheet — the one-page summary, printable, for quick recall.
More like this
HTML Headings
h1 through h6 are the page’s table of contents. Use them for structure, never for size — that’s what CSS is for.
HTML Headings
h1–h6 are instances of HTMLHeadingElement. They take no special attributes — only the global set and ARIA — but there’s real depth in how they form the document outline and what you can do with them from JavaScript.
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