Javascript Error handler

ErrorHandlerWrapper.js

var fs = require('fs')

fs.readFile('app.js', errorHandler(function (content) {
    console.log('File contents are ' + content)
  })
)


function errorHandler(callback) {
  return function (err, result) {
    if (err) {
      // here goes the common logic for handling of the error
      // add it according to strategy for handling the error
      console.error("Error occurred: " + err)
    } else {
      callback(result)
    }
  }
}