JSFiddle - React, Tailwind, and code Playground
JavaScript
var cities = ['Berlin', 'Melbourne', 'Dallas'];
var population = {
'Amsterdam': 100,
'Berlin': 150,
'Cairo': 200,
'Jakarta': 300,
'Melbourne': 350,
'Dallas': 400,
'Buenos Aires': 100
};
var filterObj = {};
cities.forEach(function (x) {
filterObj[x] = population[x];
});
console.log(filterObj);