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stream.Writable close Event

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stream.Writable close Event

stream.Writable close Event sits in an upload job. Dev’s job is read a big CSV. Write that first.

stream.Writable close Event on the board: createReadStream. Then say what read a big CSV looks like after.

Skip stream.Writable close Event and loading the whole file into RAM shows up in an upload job.

Dev ships stream.Writable close Event in an upload job. That is the use case worth saying.

stream.Writable close Event miss — loading the whole file into RAM. Fix it before you talk about advanced Node.js.

After stream.Writable close Event, Dev should still remember loading the whole file into RAM.

One breath for stream.Writable close Event, then read a big CSV, then loading the whole file into RAM. Sit down.

Exam tip

Say stream.Writable close Event in one breath, then createReadStream, then loading the whole file into RAM.

Example

const fs = require("fs");
const path = require("path");

const file = path.join(__dirname || ".", "demo.txt");
fs.writeFileSync(file, "hello node\n");
const text = fs.readFileSync(file, "utf8");
console.log(text.trim());
fs.unlinkSync(file);

stream.Writable close Event — fs reads/writes files. Prefer promises/async APIs in real apps.

Short notes

Defstream.Writable close Event — Dev uses it for read a big CSV in an upload job.
Rulestream.Writable close Event → createReadStream.
Rememberstream.Writable close Event + npm (an upload job).
Usestream.Writable close Event in an upload job (read a big CSV).
Trapstream.Writable close Event — loading the whole file into RAM.
Exstream.Writable close Event → read a big CSV.

const fs = require("fs"); const path = require("path"); const file = path.join(__dirname || ".", "demo.txt"); fs.writeFileSync(file, "hello node\n"); const text = fs.readFileSync(file, "utf8"); console.log(text.trim()); fs.unlinkSync(file);

stream.Writable close Event

Example

Short notes

Questions

stream.Writable close Event

Example

Short notes

Questions