filter the one of the value of key from array of objects code example

Example 1: javascript filter array of objects by key

var data = { records : [{ "empid": 1, "fname": "X", "lname": "Y" }, { "empid": 2, "fname": "A", "lname": "Y" }, { "empid": 3, "fname": "B", "lname": "Y" }, { "empid": 4, "fname": "C", "lname": "Y" }, { "empid": 5, "fname": "C", "lname": "Y" }] }
var empIds = [1,4,5]
var filteredArray = data.records.filter(function(itm){
  return empIds.indexOf(itm.empid) > -1;
});

filteredArray = { records : filteredArray };

Example 2: filter an array of objects and match its key with values inside another array

const arr = [1, 2, 3, 4]
const brr = [2, 4]
const res = arr.filter((f) => !brr.includes(f))
console.log(res)