Web technologies Questions | Node.js Quiz | Set-1 | Question 5

Which of the below fs module is used to truncate a file ?
(A) fs.delete(fd, len, callback)
(B) fs.remove(fd, len, callback)
(C) fs.ftruncate(fd, len, callback)
(D) None of the above.

Answer: (C)
Explanation: The fs.ftruncate() method in Node.js is used to change the size of the files It increases or decreases the size of the file. Or it changes the length of the file by len bytes If len is shorter than the file’s current length, the file is truncated to that length. It takes 3 parameters as fd, len, and callback.
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