React Native

CSV Column Names

See more CSV Examples

Demonstrates how to access CSV column names.

The Chilkat CSV library/component/class is freeware. The downloads for .NET, C++, Perl, Java, Ruby, and Python contain all of the Chilkat classes, some of which are freeware and some of which require licensing.

React Native

import { Csv } from '@chilkat/react-native'

function chilkatExample() {
  // This example program loads a file (sample.csv)
  // that contains this content:
  // 
  // year,color,country,food
  // 2001,red,France,cheese
  // 2005,blue,"United States",hamburger
  // 2008,green,Italy,pasta
  // 1998,orange,Japan,sushi
  // 
  // The first row contains the column names.
  // This file is available at:
  // http://www.chilkatsoft.com/testData/sample.csv

  const csv = new Csv();

  // Prior to loading the CSV file, indicate that the 1st row
  // should be treated as column names:
  csv.hasColumnNames = true;

  // Load the CSV records from the file:

  try {
    csv.loadFile('sample.csv');
  } catch {
    console.log(csv.lastErrorText);
    return;
  }

  // Display the column names:
  let colName = '';
  let idx = 0;
  for (let i = 0; i < csv.numColumns; i++) {
    colName = csv.getColumnName(i);
    console.log(`${i}: ${colName}`);

    // The following line demonstrates to to get the column
    // index given a column name:
    idx = csv.getIndex(colName);
    console.log(`${colName} is at column index ${idx}`);
  }
}