gistfile1.js

// iterate through each row of the dataset
for (var j = 0; j < parsedData.length; j++)
{
  // create a js key/value hash object
  var datum = {};

  // fetch the row we're processing
  var row = parsedData[j];

  // iterate through each column of the row
  for (var k = 0; k < fields.length; k++)
  {
    // read in our configuration and data for this column
    var col = update.columns[k];
    var field = row[k];

    // perform replace operations if the configuration deems it so
    if (col.replace != null)
      field = field.replace(new RegExp(col.search, 'ig'), col.replace);

    // perform date parsing and formatting if the configuration deems it so
    if (col.moment != null)
      field = moment(field, col.moment.in).format(col.moment.out);

    // assume we should trim whitespace off the ends of our values
    datum[col.name] = trim(field);
  }

  // save off this row's object
  importData.push(datum);
}