1  # fs.realpath
 2  
 3  A backwards-compatible fs.realpath for Node v6 and above
 4  
 5  In Node v6, the JavaScript implementation of fs.realpath was replaced
 6  with a faster (but less resilient) native implementation.  That raises
 7  new and platform-specific errors and cannot handle long or excessively
 8  symlink-looping paths.
 9  
10  This module handles those cases by detecting the new errors and
11  falling back to the JavaScript implementation.  On versions of Node
12  prior to v6, it has no effect.
13  
14  ## USAGE
15  
16  ```js
17  var rp = require('fs.realpath')
18  
19  // async version
20  rp.realpath(someLongAndLoopingPath, function (er, real) {
21    // the ELOOP was handled, but it was a bit slower
22  })
23  
24  // sync version
25  var real = rp.realpathSync(someLongAndLoopingPath)
26  
27  // monkeypatch at your own risk!
28  // This replaces the fs.realpath/fs.realpathSync builtins
29  rp.monkeypatch()
30  
31  // un-do the monkeypatching
32  rp.unmonkeypatch()
33  ```