NodeJs reading csv file

With nodejs I want to parse a .csv file of 10000 records and do some operation on each row. I tried using http://www.adaltas.com/projects/node-csv. I couldnt get this to pause at each row. This just reads through all the 10000 records. I need to do the following

1) read csv line by line 2) perform time consuming operation on each line 3) go to the next line

Can anyone please suggest any alternative ideas here?

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Seems like you need to use some stream based solution, there existed already such libraries so before reinventing yourself, try this library, which also includes validation support. https://www.npmjs.org/package/fast-csv

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我目前的解决方案使用异步模块来串行执行：

var fs = require('fs');
var parse = require('csv-parse');
var async = require('async');

var inputFile='myfile.csv';

var parser = parse({delimiter: ','}, function (err, data) {
  async.eachSeries(data, function (line, callback) {
    // do something with the line
    doSomething(line).then(function() {
      // when processing finishes invoke the callback to move to the next one
      callback();
    });
  })
});
fs.createReadStream(inputFile).pipe(parser);

---

我用这种方式： -

var fs = require('fs'); 
var parse = require('csv-parse');

var csvData=[];
fs.createReadStream(req.file.path)
    .pipe(parse({delimiter: ':'}))
    .on('data', function(csvrow) {
        console.log(csvrow);
        //do something with csvrow
        csvData.push(csvrow);        
    })
    .on('end',function() {
      //do something wiht csvData
      console.log(csvData);
    });

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