Dart

CSV Delete Column

Demonstrates the DeleteColumn method. Dart

import 'package:chilkat/chilkat.dart';

void main() {
  // We have the following CSV...

  // permalink,company,numEmps,category,city,state,fundedDate,raisedAmt,raisedCurrency,round
  // lifelock,LifeLock,,web,Tempe,AZ,1-May-07,6850000,USD,b
  // mycityfaces,MyCityFaces,7,web,Scottsdale,AZ,1-Jan-08,50000,USD,seed
  // flypaper,Flypaper,,web,Phoenix,AZ,1-Feb-08,3000000,USD,a
  // infusionsoft,Infusionsoft,105,software,Gilbert,AZ,1-Oct-07,9000000,USD,a
  // gauto,gAuto,4,web,Scottsdale,AZ,1-Jan-08,250000,USD,seed
  // chosenlist-com,ChosenList.com,5,web,Scottsdale,AZ,1-Oct-06,140000,USD,seed
  // digg,Digg,60,web,San Francisco,CA,1-Oct-05,2800000,USD,a
  // facebook,Facebook,450,web,Palo Alto,CA,1-Sep-04,500000,USD,angel
  // facebook,Facebook,450,web,Palo Alto,CA,1-May-05,12700000,USD,a
  // photobucket,Photobucket,60,web,Palo Alto,CA,1-May-06,10500000,USD,b
  // omnidrive,Omnidrive,,web,Palo Alto,CA,1-Dec-06,800000,USD,angel
  // geni,Geni,18,web,West Hollywood,CA,1-Jan-07,1500000,USD,a
  // twitter,Twitter,17,web,San Francisco,CA,1-Jul-07,5400000,USD,b
  // stumbleupon,StumbleUpon,,web,San Francisco,CA,1-Dec-05,1500000,USD,seed
  // gizmoz,Gizmoz,,web,Menlo Park,CA,1-May-07,6300000,USD,a
  // mahalo,Mahalo,40,web,Santa Monica,CA,1-Jan-06,5000000,USD,a

  final bCrlf = true;
  final sb = CkStringBuilder();
  sb.appendLine('permalink,company,numEmps,category,city,state,fundedDate,raisedAmt,raisedCurrency,round', bCrlf);
  sb.appendLine('lifelock,LifeLock,,web,Tempe,AZ,1-May-07,6850000,USD,b', bCrlf);
  sb.appendLine('mycityfaces,MyCityFaces,7,web,Scottsdale,AZ,1-Jan-08,50000,USD,seed', bCrlf);
  sb.appendLine('flypaper,Flypaper,,web,Phoenix,AZ,1-Feb-08,3000000,USD,a', bCrlf);
  sb.appendLine('infusionsoft,Infusionsoft,105,software,Gilbert,AZ,1-Oct-07,9000000,USD,a', bCrlf);
  sb.appendLine('gauto,gAuto,4,web,Scottsdale,AZ,1-Jan-08,250000,USD,seed', bCrlf);
  sb.appendLine('chosenlist-com,ChosenList.com,5,web,Scottsdale,AZ,1-Oct-06,140000,USD,seed', bCrlf);
  sb.appendLine('digg,Digg,60,web,San Francisco,CA,1-Oct-05,2800000,USD,a', bCrlf);
  sb.appendLine('facebook,Facebook,450,web,Palo Alto,CA,1-Sep-04,500000,USD,angel', bCrlf);
  sb.appendLine('facebook,Facebook,450,web,Palo Alto,CA,1-May-05,12700000,USD,a', bCrlf);
  sb.appendLine('photobucket,Photobucket,60,web,Palo Alto,CA,1-May-06,10500000,USD,b', bCrlf);
  sb.appendLine('omnidrive,Omnidrive,,web,Palo Alto,CA,1-Dec-06,800000,USD,angel', bCrlf);
  sb.appendLine('geni,Geni,18,web,West Hollywood,CA,1-Jan-07,1500000,USD,a', bCrlf);
  sb.appendLine('twitter,Twitter,17,web,San Francisco,CA,1-Jul-07,5400000,USD,b', bCrlf);
  sb.appendLine('stumbleupon,StumbleUpon,,web,San Francisco,CA,1-Dec-05,1500000,USD,seed', bCrlf);
  sb.appendLine('gizmoz,Gizmoz,,web,Menlo Park,CA,1-May-07,6300000,USD,a', bCrlf);
  sb.appendLine('mahalo,Mahalo,40,web,Santa Monica,CA,1-Jan-06,5000000,USD,a', bCrlf);

  final csv = CkCsv();

  // Indicate that the 1st line contains column names.
  csv.hasColumnNames = true;
  csv.loadFromString(sb.getAsString());

  // Delete the "city" column, which is at index 4.  (the 1st column is at index 0)
  csv.deleteColumn(4);

  print(csv.saveToString());

  // Output is:

  // permalink,company,numEmps,category,state,fundedDate,raisedAmt,raisedCurrency,round
  // lifelock,LifeLock,,web,AZ,1-May-07,6850000,USD,b
  // mycityfaces,MyCityFaces,7,web,AZ,1-Jan-08,50000,USD,seed
  // flypaper,Flypaper,,web,AZ,1-Feb-08,3000000,USD,a
  // infusionsoft,Infusionsoft,105,software,AZ,1-Oct-07,9000000,USD,a
  // gauto,gAuto,4,web,AZ,1-Jan-08,250000,USD,seed
  // chosenlist-com,ChosenList.com,5,web,AZ,1-Oct-06,140000,USD,seed
  // digg,Digg,60,web,CA,1-Oct-05,2800000,USD,a
  // facebook,Facebook,450,web,CA,1-Sep-04,500000,USD,angel
  // facebook,Facebook,450,web,CA,1-May-05,12700000,USD,a
  // photobucket,Photobucket,60,web,CA,1-May-06,10500000,USD,b
  // omnidrive,Omnidrive,,web,CA,1-Dec-06,800000,USD,angel
  // geni,Geni,18,web,CA,1-Jan-07,1500000,USD,a
  // twitter,Twitter,17,web,CA,1-Jul-07,5400000,USD,b
  // stumbleupon,StumbleUpon,,web,CA,1-Dec-05,1500000,USD,seed
  // gizmoz,Gizmoz,,web,CA,1-May-07,6300000,USD,a
  // mahalo,Mahalo,40,web,CA,1-Jan-06,5000000,USD,a
}