1var colors = ["red",undefined,"","blue",null,"crap"];
2// remove undefined, null, "" and any other crap
3var cleanColors=_.without(colors,undefined,null,"","crap");
4//cleanColors is now ["red","blue"];

1var a = [
2  {id: 1, name: 'A'},
3  {id: 2, name: 'B'},
4  {id: 3,  name: 'C'},
5  {id: 4, name: 'D'}
6];
7var removeItem = [1,2];
8removeItem.forEach(function(id){
9   var itemIndex = a.findIndex(i => i.id == id);
10   a.splice(itemIndex,1);
11});
12console.log(a);