Node.js · Junior · Question 53 of 75

How do you append a line to a file using promises?

1fs.append("log.txt", "line\n")
✓Correct answer: await appendFile("log.txt", "line\n") from node:fs/promises
3await writeFile("log.txt", "line\n")

Explanation

writeFile replaces the whole file by default. appendFile adds to the end and creates the file if it doesn't exist.

Further reading

Node.js API: File system ↗

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