JSFiddle - React, Tailwind, and code Playground

by Dedi Wibisono

JavaScript

var data = [
	{name: "A", age: 40},
	{name: "B", age: 20},
	{name: "C", age: 50}

];

var dataBaru = data
	.filter(function(person) {
		return person.age > 30;
	})
  .map(function(person) {
  	return person.name;
  });
  
var dataBaru2 = data
  .map(function(person) {
  	return person.name;
  })
	.filter(function(name) {
		return name == "A";
	})

console.log(data, dataBaru, dataBaru2);