Introduction to lang-map

The lang-map library offers an extensive suite of features for handling language mapping and localization in JavaScript applications. Ideal for developers, it provides an arsenal of APIs to streamline internationalization tasks seamlessly. This post delves into key APIs of lang-map and includes ample code snippets to illustrate their usage.

Key APIs of lang-map

Below are some of the prominent APIs provided by lang-map:

1. langMap.getLanguageName(code)

Returns the language name corresponding to a given language code.

  
    const langMap = require('lang-map');
    console.log(langMap.getLanguageName('en')); // Output: English
  

2. langMap.getLanguageNames(codes)

Returns an array of language names for an array of language codes.

  
    const langMap = require('lang-map');
    console.log(langMap.getLanguageNames(['en', 'es', 'fr'])); // Output: [ 'English', 'Spanish', 'French' ]
  

3. langMap.getLanguageCode(name)

Returns the language code for a given language name.

  
    const langMap = require('lang-map');
    console.log(langMap.getLanguageCode('English')); // Output: 'en'
  

4. langMap.getAllLanguageNames()

Returns an array of all language names supported by lang-map.

  
    const langMap = require('lang-map');
    console.log(langMap.getAllLanguageNames());
  

5. langMap.getAllLanguageCodes()

Returns an array of all language codes supported by lang-map.

  
    const langMap = require('lang-map');
    console.log(langMap.getAllLanguageCodes());
  

Example Application

Below is an example showing how these APIs can be integrated into a simple Node.js application for language localization.

  
    const langMap = require('lang-map');

    const localizedGreeting = (code) => {
      const greetings = {
        'en': 'Hello',
        'es': 'Hola',
        'fr': 'Bonjour'
      };

      const languageName = langMap.getLanguageName(code);
      const greeting = greetings[code] || 'Hello';
      
      console.log(`Greeting in ${languageName}: ${greeting}`);
    };

    localizedGreeting('en'); // Output: Greeting in English: Hello
    localizedGreeting('es'); // Output: Greeting in Spanish: Hola
    localizedGreeting('fr'); // Output: Greeting in French: Bonjour
  

As demonstrated, the lang-map library is versatile and simplifies the handling of different languages in your applications.

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