Node.js · Theory

streamConsumers.buffer(stream) in Node.js

Theory

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streamConsumers.buffer(stream) in Node.js

streamConsumers.buffer(stream) (in node js) is a Node.js idea you prove with read a big CSV, not with a slogan.

Keep streamConsumers.buffer(stream) (in node js) small. Farhan should finish read a big CSV in a few lines, not a 40-line dump.

Skip streamConsumers.buffer(stream) (in node js) and loading the whole file into RAM shows up in an upload job.

Farhan ships streamConsumers.buffer(stream) (in node js) in an upload job. That is the use case worth saying.

streamConsumers.buffer(stream) (in node js) trap: loading the whole file into RAM. Farhan loses marks for that every viva.

After streamConsumers.buffer(stream) (in node js), Farhan should still remember loading the whole file into RAM.

Viva for streamConsumers.buffer(stream) (in node js): what it is → createReadStream → the mistake (loading the whole file into RAM).

Exam tip

Say streamConsumers.buffer(stream) (in node js) 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);

streamConsumers.buffer(stream) in Node.js — fs reads/writes files. Prefer promises/async APIs in real apps.

Short notes

DefstreamConsumers.buffer(stream) (in node js) — Farhan uses it for read a big CSV in an upload job.
RulestreamConsumers.buffer(stream) (in node js) → createReadStream.
RememberstreamConsumers.buffer(stream) (in node js) + the event loop (an upload job).
UsestreamConsumers.buffer(stream) (in node js) in an upload job (read a big CSV).
TrapstreamConsumers.buffer(stream) (in node js) — loading the whole file into RAM.
ExstreamConsumers.buffer(stream) (in node js) → 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);

streamConsumers.buffer(stream) in Node.js

Example

Short notes

Questions

streamConsumers.buffer(stream) in Node.js

Example

Short notes

Questions