cp.js
function(stats, callback) {
      fs.readFile(file, function(err, data) {
        callback(err, data, stats);
      });
    }
function(stats, callback) {
      fs.readFile(file, function(err, data) {
        callback(err, data, stats);
      });
    }
function ( stats , callback ) { fs . readFile ( file , function ( err , data ) { callback ( err , data , stats ) ; } ) ; }
Read the file
Read the file