if statement in node.js with with some mongoose query

Question

Im trying to write an if statement in Node.js with some mongoose query but the if statement does not get executed correctly.

So I'm doing this:

    app.get('Job/GetJobs', function(req,res){ 
      if(JobDB.Find()==null){
        req.render('home.html');
      }
      else req.render('Job.html')
    })

But the above code works if it was in java but not in Node.js because req.render('home.html'); gets executed before JobDB.find() finishes.

ItalyPaleAle · Accepted Answer · 2016-03-20 23:46:49Z

1

Most functions in Node.js are asynchronous, so you need to use a callback:

app.get('Job/GetJobs', function(req,res){ 
    JobDB.find({}, function(err, result) {
        if(!result) req.render('home.html')
        else req.render('Job.html') 
    })
})

(you'll have to include some error handling there)

See the documentation: http://mongoosejs.com/docs/2.7.x/docs/finding-documents.html

answered Mar 20, 2016 at 23:46

ItalyPaleAle

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