JS: remove duplicate values in array, including the original

Question

Does anyone know how to remove duplicates in an array including the original value? I came across different snippets like this and this and some others but none in particul

Answer 1

$(function() {
  var array = [1, 2, 3, 4, 5, 6, 6 ,6 ]
  console.log(removeDuplicate(array, 6))
});

function removeDuplicate(original, val) {
   if(!val) return original

   
   var filtered = _.filter(original, function(num){ return num != val; });
   return filtered
}