Error handling in Nodejs

Question

I have this code snippet from the twit module of nodejs:

 function tweets() {
        T.get('search/tweets', { q: input, since:'2013-11-11', count: 3 }, function(err, data, response) {
            if (data) {
                  sendMain(data.statuses[0].text);
            }
            else if (err) {
                sendMain(err);
            }
})
    }

and everything works fine except the error handling, for example, if I search for food, a tweet will pop up, but if I search for ljfhlsjkdfhsldf if comes with the error of:

              sendMain(data.statuses[0].text);
                                       ^
TypeError: Cannot read property 'text' of undefined
    at c:\Users\karim_000\dropbox\main\bot2.js:235:44
    at responseHandler (c:\Users\karim_000\dropbox\main\node_modules\twit\lib\oa
request.js:375:12)
    at passBackControl (c:\Users\karim_000\dropbox\main\node_modules\twit\node_m
odules\oauth\lib\oauth.js:367:11)
    at IncomingMessage.<anonymous> (c:\Users\karim_000\dropbox\main\node_modules
\twit\node_modules\oauth\lib\oauth.js:386:9)
    at IncomingMessage.emit (events.js:117:20)
    at _stream_readable.js:943:16
        at process._tickCallback (node.js:419:13)
    Program node bot2 exited with code 8

Why isnt my error handling working? any help? Thanks.

@FlorianMargaine So How can I do some sort of error handling if the array is empty? — Vikaton
– Vikaton, Commented Dec 7, 2014 at 17:10

justinpinili · Accepted Answer · 2014-11-27 05:38:52Z

2

This isn't necessarily an error that is occuring. You are getting the data parameter back, however, my guess is that data is either undefined or null.

Have you tried to console.log('data: ' + data); to see what is returning? That will tell you for sure what is returning back in that data parameter.

answered Nov 27, 2014 at 5:38

justinpinili

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2 Comments

Vikaton Over a year ago

data is undefined, and what I tried to console.log what you said, it returned: [object Object]

Vikaton Over a year ago

Data is shown but when its undefined, nothing shows up as the program exists.

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