函数returing undefined tweets

Question

我试图返回tweet给予预定义的搜索条件，变量只是作为示例的占位符。问题在于，代码运行时，变量tweets和配置文件返回'undefined'。我不确定这是为什么而不是'对象对象'，任何帮助将不胜感激。

var count = 10, 
    profile = 'manutd', 
    date = '2011-11-11', 
    keyword = 'man city', 
    lan = 'en', 
    search = keyword + " since:" + date + " lang:" + lan; 

var tweets = getTweets(); 
var profiles = getProfile(); 
console.log('Started') 

function handleTweets(err, data){ 
    if (err) { 
    console.error('Get error', err) 
    } 
    else { 
    console.log('Get Tweets'); 
    console.log(tweets); 
    console.log('Finished'); 
    } 
} 

function handleFriends(err, data){ 
    if (err) { 
    console.error('Get error', err) 
    } 
    else { 
    console.log('Get Friends'); 
    console.log(profiles); 
    console.log('Finished'); 
    } 
} 

function getTweets(){ 
    client.get('search/tweets', { q: search, count: count, from: profile }, 
       handleTweets) 
} 

function getProfile(callback){ 
    client.get('friends/list', { screen_name: profile, count: count }, 
      handleFriends) 
} 

Answer 1

var count = 10, 
profile = 'manutd', 
date = '2011-11-11', 
keyword = 'man city', 
lan = 'en', 
search = keyword + " since:" + date + " lang:" + lan; 

console.log('Started') 

function handleTweets(err, data){ 
    if (err) { 
    console.error('Get error', err) 
    } else { 
    console.log('Get Tweets'); 
    console.log(data); 
    console.log('Finished'); 
    } 
} 

function handleFriends(err, data){ 
    if (err) { 
    console.error('Get error', err) 
    } else { 
    console.log('Get Friends'); 
    console.log(data); 
    console.log('Finished'); 
    } 
} 

function getTweets(){ 
    client.get('search/tweets', { q: search, count: count, from: profile }, 
      handleTweets) 
} 

function getProfile(callback){ 
    client.get('friends/list', { screen_name: profile, count: count }, 
     handleFriends) 
} 

在这里，您正在访问的回调函数，这就是为什么你得到undefined没有API返回的数据未定义的属性tweets & profiles;）