arr1 - arr2 = arr3

const namesArr = ["Lily", "Roy", "John", "Jessica"];
const namesToDeleteArr = ["Roy", "John"];
function minusArray(namesArr, namesToDeleteArr) {
// make a Set to hold values from namesToDeleteArr
const namesToDeleteSet = new Set(namesToDeleteArr);
// use filter() method
// to filter only those elements
// that need not to be deleted from the array
return namesArr.filter((name) => {
  // return those elements not in the namesToDeleteSet
  return !namesToDeleteSet.has(name);
});
}
ss.info(minusArray(namesArr, namesToDeleteArr) )