JAVASCRIPT

javascript filter array of objects

let people = [
  { name: "Steve", age: 27, country: "America" },
  { name: "Jacob", age: 24, country: "America" }
];

let filteredPeople = people.filter(function (currentElement) {
  // the current value is an object, so you can check on its properties
  return currentElement.country === "America" && currentElement.age < 25;
});

console.log(filteredPeople);
// [{ name: "Jacob", age: 24, country: "America" }]

javascript filter array of objects by array

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

javascript filter array of objects

function isBigEnough(value) {
  return value >= 10
}

let filtered = [12, 5, 8, 130, 44].filter(isBigEnough)
// filtered is [12, 130, 44]