Node.js · Theory

http2stream.rstCode Method

Theory

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http2stream.rstCode Method

http2stream.rstCode Method is a Node.js topic. In plain words you use it for read a big CSV in an upload job. Don’t start with a slogan — start with that picture.

Smallest example: createReadStream. Type it, run it, and say what you see. If you can do that from memory, you know http2stream.rstCode Method.

From the example next to this theory — http2stream.

Trap — loading the whole file into RAM. Fix that before you talk about advanced Node.js.

Viva — what is http2stream.rstCode Method? Then show createReadStream. Then name the trap.

Diagram

  request
      │
      ▼
  event loop
      │ I/O done
      ▼
  response

Exam tip

What is http2stream.rstCode Method? Show this: createReadStream. Trap: loading the whole file into RAM.

Example

// http2stream.rstCode Method
const users = [
  { id: 1, name: "Asha" },
  { id: 2, name: "Ravi" },
];

function findUser(id) {
  return users.find((u) => u.id === id) ?? null;
}

console.log(findUser(2));
console.log(users.map((u) => u.name));

http2stream.rstCode Method: find user 2, then list names. Say both prints.

Short notes

Defhttp2stream.rstCode Method — read a big CSV in an upload job.
RulecreateReadStream
Traploading the whole file into RAM
Usean upload job

// http2stream.rstCode Method const users = [ { id: 1, name: "Asha" }, { id: 2, name: "Ravi" }, ]; function findUser(id) { return users.find((u) => u.id === id) ?? null; } console.log(findUser(2)); console.log(users.map((u) => u.name));

http2stream.rstCode Method

Example

Short notes

Questions

http2stream.rstCode Method

Example

Short notes

Questions