Instructions for the fs.readlink method in node.js

method description:

The link is read asynchronously.

syntax:

fs.readlink(path, [callback(err,linkString)])

Since this method belongs to the fs module, it is necessary to introduce the fs module (var fs= require(" fs "))

before using it

receive parameters:

path                 path

callback       callback, passing 2 parameters, exceptions err and   linkString return the link string

source:

fs.readlink = function(path, callback) {

  callback = makeCallback(callback);

  if (!nullCheck(path, callback)) return;

  binding.readlink(pathModule._makeLong(path), callback);

};