How will you truncate a file using Node?


Following is the syntax of the method to truncate an opened file:

fs.ftruncate(fd, len, callback)


Here is the description of the parameters used:

  • fd - This is the file descriptor returned by file method.

  • len - This is the length of the file after which file will be truncated.

  • callback - This is the callback function which gets no arguments other than a possible exception are given to the completion callback.


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