how to sort an array based on another object in javascript code example

Example 1: sort array based on another array

arr.sort((a, b) =>{  
	return sortingArray.indexOf(a) - sortingArray.indexOf(b);
});

Example 2: sort arrays according to first array js

itemsArray.sort(function(a, b){  
  return sortingArr.indexOf(a) - sortingArr.indexOf(b);
});