How to filter list of object in array by element (array) that starts with string

I have the following object table :

var search = ["LFBB"];
var data = [
  { id: 1, date: "18-02-2016", valname: ["LFBBR1", "LFFFE5", "LFMBR1", "LFBB5"]  },
  { id: 2, date: "19-02-2016", valname: ["LFFF6", "EESF7", "LFMBR1", "LFGG3"]  },
  { id: 3, date: "14-02-2016", valname: ["LFBBL2", "LFFBC5", "LFMBR1", "LFBB5"]  },
  { id: 4, date: "17-02-2016", valname: ["LEEE5", "LFFFE8", "BGTT5", "LFHT9"]  },
];

var search = "LFBB"

I would like to filter the data if the value of "valname" match with the value of "search"

if search = "LFBB" the filter should return the following result:

result after filter :

data = [
             { id: 1, date: "18-02-2016", valname: ["LFBBR1", "LFFFE5", "LFMBR1", "LFBB5"]},
             { id: 3, date: "14-02-2016", valname: ["LFBBL2", "LFFBC5", "LFMBR1", "LFBB5"]}
          ],

I tried to use

var startsWithN = data.((data) => data.startsWith(source));

but it doesn't work

Thanks for your help