The callback gets two arguments (err, resolvedPath).
Only paths that can be converted to UTF8 strings are supported.
The optional options argument can be a string specifying an encoding, or an
object with an encoding property specifying the character encoding to use for
the path passed to the callback. If the encoding is set to 'buffer',
the path returned will be passed as a Buffer object.
On Linux, when Node.js is linked against musl libc, the procfs file system must
be mounted on /proc in order for this function to work. Glibc does not have
this restriction.
Asynchronous
realpath(3).The
callbackgets two arguments(err, resolvedPath).Only paths that can be converted to UTF8 strings are supported.
The optional
optionsargument can be a string specifying an encoding, or an object with anencodingproperty specifying the character encoding to use for the path passed to the callback. If theencodingis set to'buffer', the path returned will be passed as aBufferobject.On Linux, when Node.js is linked against musl libc, the procfs file system must be mounted on
/procin order for this function to work. Glibc does not have this restriction.Since
v9.2.0