Nested object needs to be modified

Question

This is the input json which i am reading and trying to change the structure as per requirement.But unable to do so countries i am able to put inside object but timezone i am unable to read.Can any one help clearly i need to work on objects little harder.

 let timezone = { countries: { Algeria: { cities: { "Algiers": { city: "Algiers", timezone: "(UTC+01:00) W. central africa standard time", ianaTz: "Africa/Algiers", }, }, }, Argentina: { cities: { "Buenos aires": { city: "Buenos aires", timezone: "(UTC-03:00) Argentina standard time", ianaTz: "America/Argentina/Buenos_Aires", }, "Cordoba": { city: "Cordoba", timezone: "(UTC-03:00) Argentina standard time", ianaTz: "America/Argentina/Cordoba", }, "Tucuman": { city: "Tucuman", timezone: "(UTC-03:00) Argentina standard time", ianaTz: "America/Argentina/Tucuman", }, }, } } } function editTimezone(timezone) { var arr = []; for (var key in timezone.countries) { var city = timezone.countries[key].cities; for (var cit in city) { var timezone = timezone.countries[key].cities.cit.timezone; //undefined } arr.push({ "country": key, "timezone": [timezone] }) } console.log(arr); } editTimezone(timezone);

//OUTPUT REQUIRED--

[{
"country":"Algeria"
"timezone": ["((UTC+01:00) W. central africa standard time"]
 },
 {   
  "country":"Argentina"
  "timezone": ["(UTC-03:00) Argentina standard time","(UTC-03:00) Argentina standard 
  time","(UTC-03:00) Argentina standard time"]
 }
]

Not sure what logic i should write for achieving the output.

Answer 1

Script:

function editTimezone() {
  var countries = timezone.countries;
  var arr = Object.keys(countries).map(country => {
    var cities = countries[country].cities;
    return {
      'country': country,
      'timezone' : Object.keys(cities).map(city => cities[city].timezone)
    }
  });

  console.log(arr);
}

Steps:

• First, get the countries, then map them to create an array.
• Next, get the list of cities per country then map it again with their own timezones.
• Lastly, return both the country name and the timezones as an object altogether to get an array of these objects.

Output: