Twitter Node.js查询错误

Question

I've tried a few variations of this snippet. I keep getting the same undefined error when trying to print a json object to the console. Thanks in advance.

var userTweets = client.get('statuses/user_timeline', function(error, tweets, response){
if(error) throw error;
return tweets
});

console.log(userTweets)

Answer 1

client.get is asynchronous

This code is working, then you have to manage your code to wait for asynchronous response.

client.get('statuses/user_timeline', function(error, tweets, response){
    if(error) throw error;
    console.log(tweets)
});

If you have some code after client.get, you should do that

before :

var userTweets = client.get(..., function() {});

// do some code
console.log(userTweets);

after :

client.get(....., function(error, tweets) {
   ...
   otherCode(tweets);
});

function otherCode(userTweets) {
   // do some code
   console.log(userTweets);
}

I suggest you to read this answer : https://stackoverflow.com/a/11233849/5384802 to understand asynchronous code.