If data is a plain object, it must have an own (not inherited) toStringfunction property.
data
toString
The mode option only affects the newly created file. See open for more details.
mode
For detailed information, see the documentation of the asynchronous version of this API: writeFile.
filename or file descriptor
Optional
If
datais a plain object, it must have an own (not inherited)toStringfunction property.The
modeoption only affects the newly created file. See open for more details.For detailed information, see the documentation of the asynchronous version of this API: writeFile.