stringify-import.ts

import assert from 'assert'
import { Stringifier } from 'csv-stringify';

(async function(){
  const {stringify} = await import('csv-stringify');
  console.log(stringify);
  
  let output: string = '';
  // Create the parser
  const stringifier: Stringifier = stringify({
    delimiter: ':',
    encoding: 'utf8'
  });
  // Use the readable stream api to consume records
  stringifier.on('readable', function(){
    let record; while ((record = stringifier.read()) !== null) {
      output += record
    }
  });
  // Catch any error
  stringifier.on('error', function(err){
    console.error(err.message)
  });
  // Test that the parsed records matched what's expected
  stringifier.on('end', function(){
    assert.deepStrictEqual(
      output,
      'a:b:c\n1:2:3\n'
    )
  });
  // Write data to the stream
  stringifier.write(["a", "b", "c"]);
  stringifier.write([1, 2, 3]);
  // Close the readable stream
  stringifier.end();
})()