var m = "a";


 destination2 = [];
   db.collection('DestinationDisplay').get().then((snapshot) => {
     var i = 0;
     snapshot.docs.forEach(doc => {
       destination2[i] = doc.data().DestinationName;
        $("a").click(function xyc(){
        m = this.id;
        console.log(m);
      });
     
   i+=1;
 })});

 console.log(m);

The last console.log() only shows 'a' while I need a number.