A few common node methods

1. Writing files

/** * Write to File * @param {string} filePath file path * @param {string} data file contents * @return {none}*/functionWriteFile (filepath,data) {varDIR =Path.dirname (FilePath); varParts =Dir.split (PATH.SEP); Parts.reduce (function(Previous, current) {varPredir =Path.join (previous,current); if(!Fs.existssync (Predir)) {Fs.mkdirsync (Predir)}returnPredir}); Fs.writefilesync (Filepath,data);}

2. Folder replication

/** * Copy folder and file inside * @param {string} src source file path * @param {string} dest placement Path * @return {bool}*/functioncopy (src, dest) {if(isdirectory (src)) {if(!Fs.existssync (dest))        {Fs.mkdirsync (dest); }        varFiles =Fs.readdirsync (SRC); if(Files) {Files.foreach (function(filename) {copy (Path.join (src, filename), path.join (dest, FileName)})} } Else{fs.writefilesync (dest, ReadFile (SRC)); }    return true;}

3. Array de-weight

/* * * Array to weight * @param  {array} arr  * @return {array}  */function  arrayunique (arr)    {var result = [];      for (var i = 0; i < arr.length; i++) {        if (Result.indexof (arr[i]) = =-1) {            Result.push (Arr[i]);        }    }     return result;}

4. Deep Clone objects

/** * Clone Object * @param {object} obj * @return {object}*/functionClone (obj) {//simple data type returns directly    if(obj = =NULL) {        returnobj; }    if(typeofObj! = ' object ') {        returnobj; }    //Copying Complex objects    varresult =NewObj.constructor ();  for(varPropinchobj) {Result[prop]=Clone (Obj[prop]); }    returnresult;};

A few common node methods