Parsing CSV in node.js

app.js

// Call this via CLI with $ node app.js /PathTo/Your.csv
var parse = require('csv-parse');
var fs = require('fs');

process.argv.forEach(function (val, index, array) {
  /*
    Position 0 == node, poistion 1 == app.js (full path) thats why we check we
    need to check for args from index 2 onwards
  */
  if( index > 1){
    var filePath = array[index]; // Get the file
    fs.readFile(filePath, function (err, data) { // Read the contents of the file
      if (err){
        console.error( "** ERROR ** ", err);
      } else{
        // Finally parse the data
        parse(data.toString(), {comment: '#'}, processFile);
      }
    });
  }
});

function processFile( err, data ){
  if(err) console.error( "** ERROR ** ", err);
  else console.log(data); // Dump the CSV to the console window
}