WebSockets — HTML Technical Interview Questions & Answers

Full-duplex, real-time communication with a server.

WebSockets

  • WebSockets (html5) is a HTML topic. In plain words you use it for a short WebSockets html5 example in a web page in the browser. Don’t start with a slogan — start with that picture.
  • Smallest example: the smallest WebSockets html5 example you can type. Type it, run it, and say what you see. If you can do that from memory, you know WebSockets (html5).
  • From the example next to this theory: Full-duplex, real-time communication with a server.
  • Trap: only saying “WebSockets html5” with no example. Fix that before you talk about advanced HTML.
  • Viva: what is WebSockets (html5)? Then show the smallest WebSockets html5 example you can type. Then name the trap.

Technical Interview Tip: What is WebSockets (html5)? Show this: the smallest WebSockets html5 example you can type. Trap: only saying “WebSockets html5” with no example.

Code Examples for WebSockets

WebSockets — working example

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <title>WebSockets</title>
  </head>
  <body>
    <main>
      <h1>WebSockets</h1>
      <p>Semantic HTML example for this topic.</p>
      <ul>
        <li>Use the right element</li>
        <li>Add accessible text</li>
      </ul>
    </main>
  </body>
</html>

WebSockets: doctype + one h1 + a short list. That is the page skeleton.

How to Explain WebSockets to an Interviewer

What is WebSockets (html5)?

Used for a short WebSockets html5 example a web page in the browser Not just the heading

Give one small example of WebSockets (html5).

the smallest WebSockets html5 example you can type Full-duplex, real-time communication with a server

What mistake do beginners make with WebSockets (html5)?

only saying “WebSockets html5” with no example Show the fix

Where do you use WebSockets (html5)?

a web page in the browser a short WebSockets html5 example