sentimentAnalysis.js

function sentimentAnalysis() {
   var tweets = JSON.parse(body).statuses
   tweets = JSON.parse(body).statuses.map(function (e) {

      // clean tweet
      var tweet = clean(e.text)

      // sentiment analysis
      var result = new Sentiment().analyze(tweet, {
         extras: words
      })

      // return the results
      return {
         comparative: result.comparative,
         score: result.score,
         content: tweet
      }
   })
   
}