Access caller arguments from callback

Question

Access caller arguments from callback

I have this:

var parseFile = function(err, data) {
 // I need to access 'myFile'
};
fs.readFile(myFile, 'utf8', parseFile);

How can I access 'myFile' within the callback declared elsewhere?

node.js

Answer 1

function parseFile(myFile) {
  return function (err, data) {
    // its a closure bound variable! yay.
  }
}

fs.readFile(myFile, "utf8", parseFile(myFile))