JSFiddle - React, Tailwind, and code Playground

by Marco Iamonte

JavaScript

var arr = [
    {
      name: "Melissandra",
      lives: { country: "Spain", city: "Valencia" },
      age: 55.5
    },
    {
      name: "Melissandrella",
      lives: { country: "Spain", city: "Valencia" },
      age: 55.555
    },
    {
      name: "Keith",
      lives: { country: "UK", city: "Newport Pagnell" },
      age: 2
    }
  ];
  
console.log(
	arr && arr.filter(i => (i.lives && i.lives.city === 'Valencia')).length
);