Convert Language name to Language Code / Country Code in JavaScript

Question

I have been working on an application where i need to redirect user to the selected pages that are translated in the respective locale. I have been getting a list of languages from the backend. I need to convert the languages in the language code. For example:

var languageName = ['English', 'Japnese', 'Chinese'];

Need to convert them to

 ['en-us','ja-jp','zh-cn'];

How can i convert the language name to language locale or country code..

Answer 1

A simple solution with a mapping object:

 const mappings = { 'English': 'en-us', 'Japanese': 'ja-jp', 'Chinese': 'zh-cn' }; const languageName = ['English', 'Japanese', 'Chinese']; const output = languageName.map(lang => mappings[lang]); console.log(output);

Answer 2

You can use an object as a mapping and then use a languege you want to get a locale for as a key:

const mapping = {
  'English' : 'en-us',
  'Japanese' : 'ja-jp', 
 ... 
};

const desiredLanguage='English';

console.log(mapping[desiredLanguage]) // outputs "en-us"