Node.js · Theory

Difference between Stream and Buffer in Node.js

Theory

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Difference between Stream and Buffer in Node.js

Difference between Stream and Buffer (in node js) is simple if you keep it on paper. Zara uses it for read a big CSV in an upload job.

Keep Difference between Stream and Buffer (in node js) small. Zara should finish read a big CSV in a few lines, not a 40-line dump.

Difference between Stream and Buffer (in node js) exists so Zara can keep read a big CSV correct in an upload job.

Difference between Stream and Buffer (in node js) shows up in an upload job. Name read a big CSV, not “a real-world scenario”.

If read a big CSV breaks under Difference between Stream and Buffer (in node js), check loading the whole file into RAM first.

After Difference between Stream and Buffer (in node js), Zara should still remember loading the whole file into RAM.

Viva for Difference between Stream and Buffer (in node js): what it is → createReadStream → the mistake (loading the whole file into RAM).

Exam tip

For Difference between Stream and Buffer (in node js): definition + an upload job + one failure.

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);

Difference between Stream and Buffer in Node.js — fs reads/writes files. Prefer promises/async APIs in real apps.

Short notes

DefDifference between Stream and Buffer (in node js) — Zara uses it for read a big CSV in an upload job.
RuleDifference between Stream and Buffer (in node js) → createReadStream.
RememberDifference between Stream and Buffer (in node js) + npm (an upload job).
UseDifference between Stream and Buffer (in node js) in an upload job (read a big CSV).
TrapDifference between Stream and Buffer (in node js) — loading the whole file into RAM.
ExDifference between Stream and Buffer (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);

Difference between Stream and Buffer in Node.js

Example

Short notes

Questions

Difference between Stream and Buffer in Node.js

Example

Short notes

Questions