Not able to access value in nodejs code

Question

I have following code in my nodejs function. Even if the IF condition is true, I am not getting values updated for stringResponse variable.

var fs = require('fs'), 
                byline = require('byline');
            var stream = fs.createReadStream('Solutionbank.csv');
            var stringResponse = "We found a similar issue.  ";
            stream = byline.createStream(stream);
            stream.on('data', function(line) {
              var csvLine = line.toString('utf8');
                  csvLine = csvLine.toLowerCase().trim();

              var msgText = subject.toLowerCase().trim();
              //console.log("email block",msgText);
              if(csvLine.indexOf(msgText) > -1) {
                var arr = line.toString('utf8').split(",");

                stringResponse = stringResponse + "Issue ID"+arr[0]+",Subject : "+arr[1]+", Resolution Comment:"+arr[2];
                console.log(stringResponse);

                }
            });

            console.log("stringResponse from email",stringResponse);

Daphoque · Accepted Answer · 2016-11-07 13:01:22Z

1

Line :

console.log("stringResponse from email",stringResponse);

Is outsite on('data') callback function, this line is called before setting the stringResponse variable. Put it at the end of the callback function (inside). Or in the other callback function called at the end of the stream :

stream.on('data', function(line) {
  ...
  console.log("stringResponse from email",stringResponse); // show each append 
});

  stream.on('end', function() {
  ...
  console.log("stringResponse from email",stringResponse); // show each append 
});

answered Nov 7, 2016 at 13:01

Daphoque

4,6781 gold badge24 silver badges35 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Not able to access value in nodejs code

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related