filter throuogh array and check if key value matches angularr 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: javascript array filter elements greater than

function isGreater(element, index, array) { 
   return (element >= 10); 
} 
          
let testElemets = [12, 5, 8, 130, 44].filter(isGreater); 
console.log("Test Value : " + testElemets );