doc: clarify fs.read() by Trott · Pull Request #14631 · nodejs/node

Expand Up @@ -1639,8 +1639,10 @@ Read data from the file specified by `fd`.
`length` is an integer specifying the number of bytes to read.
`position` is an integer specifying where to begin reading from in the file. If `position` is `null`, data will be read from the current file position. `position` is an argument specifying where to begin reading from in the file. If `position` is `null`, data will be read from the current file position, and the file position will be updated. If `position` is an integer, the file position will remain unchanged.
The callback is given the three arguments, `(err, bytesRead, buffer)`.
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