Instructions for the fs.mkdir method in node.js

method description:

Create the file directory asynchronously. If the directory already exists, an exception is thrown.

syntax:

fs.mkdir(path, [mode], [callback(err)])

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                   will create the directory path

mode                   directory permissions (read and write permissions), default 0777

The callback           callback passes the exception parameter err

Example of :

var fs = require('fs');

fs.mkdir('creatdir', 0777, function(err){

 if(err){

  console.log(err);

 }else{

  console.log("creat done!");

 }

})

source code:

fs.mkdir = function(path, mode, callback) {

  if (util.isFunction(mode)) callback = mode;

  callback = makeCallback(callback);

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

  binding.mkdir(pathModule._makeLong(path),

                modeNum(mode, 511 /*=0777*/),

                callback);

};