What is the type of the callback function in filter of Typescript?

Question

ordersData = [
  { id: 100, name: \'order 1\' },
  { id: 200, name: \'order 2\' },
  { id: 300, name: \'order 3\' },
  { id: 400, name: \'order 4\' }
  ];
  

constructo