let stream = fs.createReadStream("Supliers.csv");

let csvStream = csv({headers: true})
.on("data", function(data){
     /*data.forEach(x => {
      console.log(x)
     })*/

     Final.push(data)
})
.on("end", function(){
     console.log(Final);//[THE COMPLETE DATA TOTALLY OK]
});

stream.pipe(csvStream);

console.log(Final)// []