Javascript custom sort algorithm according to another array

Question

I have this two arrays

var refArray = [\'India\',\'Pakistan\',\'Nepal\',\'Bhutan\',\'SreeLanka\',\'Singapore\',\'Thailand\',\'China\',\'Russia\']
var beenThere          


        

Answer 1

Just compare the indices of each element in the refArray using indexOf method.

beenThere.sort(function(a,b){
return refArray.indexOf(a)-refArray.indexOf(b);
})