[1,2,3,4,5] (json file array)
[1,2,3,4,5,6] (U.G array) //it must return false

var match;
   fs.readFile('../tags.json', 'utf8', (err, data)=>{

     var JsonData = JSON.parse(data);
     var tagsArray = JsonData.tags;
     console.log(tagsArray)
     console.log(tags)
     if(tagsArray instanceof Array){
       console.log('tagsArray is array')
     }
      if(!contains(tagsArray, tags)){
        match = false
      }
      else{
        match = true
      }
     console.log(match + ' blah1')

   });

   console.log(match + ' blah2')
 if(match == false){
    return res.status(409).send({
      message: 'Do not provide your own tags'
    });
  }