Node.js · Middle · Question 11 of 75

Why use streams to send a 2 GB file instead of `readFile`?

1readFile cannot read files larger than 1 MB
✓Correct answer: Streams process the data in small chunks, so memory stays low and sending starts immediately
3Streams compress data automatically

Explanation

readFile loads the whole file into memory first. With fs.createReadStream(path).pipe(res) only a small buffer is in memory at any time.

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