Node.js · Theory

Buffer.slice() Method

Theory

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Don’t start Buffer.slice() Method with jargon. Start with read a big CSV. That is the whole point.

Do Buffer.slice() Method once by hand. createReadStream. Change one input. Say the new result out loud.

Without Buffer.slice() Method, an upload job gets messy and read a big CSV is hard to trust.

Buffer.slice() Method shows up in an upload job. Name read a big CSV, not “a real-world scenario”.

Buffer.slice() Method trap — loading the whole file into RAM. Neha loses marks for that every viva.

After Buffer.slice() Method, Neha should still remember loading the whole file into RAM.

One breath for Buffer.slice() Method, then read a big CSV, then loading the whole file into RAM. Sit down.

Exam tip

For Buffer.slice() Method: definition + an upload job + one failure.

const buf = Buffer.from("PrepPilot", "utf8");
console.log(buf.toString("utf8"));
console.log(buf.length);

Buffer.slice() Method — buffer holds raw binary data outside the V8 string heap.