npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

iso3166-helper

v1.0.2

Published

Provides utilities to work with regions, states, and sub-regions. It allows fetching regions and sub-regions by their codes and offers functionality to retrieve all sub-regions belonging to a specific region or state.

Downloads

57

Readme

iso3166-helper

This NPM module provides utilities to work with regions, states, and subregions using the ISO 3166 standard.

it's a set of utilities to work with regions, states, and subregions. Bundled with a dataset containing 250 Countries, 3766 Regions and 1301 Subregions

Installation

To install the module, run:

npm install iso3166-helper

Usage

Below are examples of how to use the functions provided by this module.

Importing the Module

import {getRegion, getCountry, getCountryName, getSubRegion, getSubRegionsby} from 'iso3166-helper';

Functions

validateCode

This function checks if a code is valid.

validateCode(code: string)

Returns:

  • The type of code (country, region, subregion) or false if the code is invalid.

Parameters:

  • code (string): The code to validate.

Example:

console.log(validateCode("IT")); // Output: "country"
console.log(validateCode("IT-45")); // Output: "region"
console.log(validateCode("IT-RA")); // Output: "subregion"
console.log(validateCode("IT-ABCDE")); // Output: false

isChildOf

This function checks if a code is a child of another code.

isChildOf(code: string, parent: string)

Returns:

  • True if both codes are valid and if the code is a child of the parent code; otherwise, false.

Parameters:

  • code (string): The code to be compared with the parent.
  • parent (string): The parent code.

Example:

console.log(isChildOf("IT-BO", "IT-45")); // Output: true
console.log(isChildOf("IT-45", "IT")); // Output: true
console.log(isChildOf("IT-45", "ABC")); // Output: false

getTree

This function retrieves a tree of regions and subregions.

getTree()

Returns:

  • An object containing the tree of regions and subregions.
  • Each region is represented as an object with the following properties:
    • code (string): The code of the region.
    • int (string): The name of the country.
    • original (string): The original name of the country.
    • region (object): The code of the parent region.
    • code (string): The code of the region.
      • subregions (object): an object of subregions, code and name as key and value pairs.

Example:

const tree = getTree();
/* {
	...
	IT: {
		code: "IT",
		int: "Italy",
		original: "Italy",
		region: {
			  name: 'Emilia-Romagna',
			  code: 'IT-45',
			  subregions: {
				'IT-BO': 'Bologna',
				'IT-FC': 'Forlì-Cesena',
				'IT-FE': 'Ferrara',
				'IT-MO': 'Modena',
				'IT-PC': 'Piacenza',
				'IT-PR': 'Parma',
				'IT-RA': 'Ravenna',
				'IT-RE': 'Reggio Emilia',
				'IT-RN': 'Rimini'
			  }
			},
		...
		}
	...
	}
 */

getCountry

This function retrieves the details for the regions of a country given its iso2 code.

getCountry(code: string)

Parameters:

  • code (string): The ISO2 code of the country.

Returns:

  • An array of objects containing the code and the name of the regions in the country as key-value pairs.

Example:

const regions = getCountry("IT");
console.log(Object.values(regions));
// Output: [ 'Piemonte', "Valle d'Aosta, Val d'Aoste", 'Lombardia', 'Trentino-Alto Adige, Trentino-Südtirol', 'Veneto', 'Friuli Venezia Giulia', 'Liguria', 'Emilia-Romagna', 'Toscana', 'Umbria', 'Marche', 'Lazio', 'Abruzzo', 'Molise', 'Campania', 'Puglia', 'Basilicata', 'Calabria', 'Sicilia', 'Sardegna' ]

getRegion

This function retrieves the name of a region given its code.

getRegion(code: string)

Parameters:

  • code (string): The code of the region (e.g., "IT-45").

Returns:

  • The name of the region.

Example:

const region = getRegion("IT-45");
console.log(region); // Output: "Emilia-Romagna"

getSubRegion

This function retrieves the details of a sub-region given its code.

getSubRegion(code: string)

Parameters:

  • code (string): The code of the sub-region (e.g., "IT-BO").

Returns:

  • An object containing the dataset of the sub-region (e.g., { countryName: 'Italy', name: "Bologna", region: "IT-45", regionName: 'Emilia-Romagna', country: "IT" }).

Example:

const subRegion = getSubRegion("IT-BO");
console.log(subRegion); // Output: { countryName: 'Italy', name: "Bologna", region: "IT-45", regionName: 'Emilia-Romagna', country: "IT" }

getSubRegionsby

This function retrieves all sub-regions belonging to a specific region or state.

getSubRegionsby(code: string, type: "region" | "state")

Parameters:

  • code (string): The code of the region or state.
  • type ("region" | "state"): The type of code provided.

Returns:

  • An array of sub-region details.

Example:

const subRegions = getSubRegionsby("IT-45", "region");
console.log(subRegions);
/* Output:
[
  { code: 'IT-BO', name: "Bologna", region: "IT-45", state: "IT" },
  { code: 'IT-FC', name: "Forlì-Cesena", region: "IT-45", state: "IT" },
  ...
]
*/

const ItalianRegions = getSubRegionsby("IT", "state").map((value) => value.name);
console.log(ItalianRegions);
/* Output:
[
  'Agrigento',        'Alessandria',     'Ancona',
  'Ascoli Piceno',    "L'Aquila",        'Arezzo',
  ...
]
*/


const subRegionsCodes = getSubRegionsby("IT", "country").map((value) => value.subregionCode.slice(3))
console.log(subRegionsCodes);
/* Output:
[
  'AG', 'AL', 'AN', 'AP', 'AQ', 'AR', 'AT', 'AV', 'BA', 'BG',
  'BI', 'BL', 'BN', 'BO', 'BR', 'BS', 'BT', 'BZ', 'CA', 'CB',
  ...
]
 */

getCountryName

This function retrieves the name of a country given its code.

getCountryName(code: string)

Parameters:

  • code (string): The code of the country (e.g., "IT").
  • type ("int" | "original"): optional. Whenever the name is returned in international format (e.g., "Italy") or in the original format (e.g., "Italia").

Returns:

  • The name of the country.

Example:

const countryName = getCountryName("IT", "original");
console.log(countryName); // Output: "Italia"

Running Tests

To run the tests for this module, use the following command:

npm test

License

This module is licensed under the MIT License.

Contributing

Contributions are welcome! Please create a pull request or open an issue to discuss any changes.