Translates word between two languages using Yandex.

translate.js

var KEY = '';

var word = 'Thank you';
var langOne = 'English';
var langTwo = 'German';

var getRequest = function(url, callback) {
  var xhr = new XMLHttpRequest();
  
  xhr.onreadystatechange = function() {
    if (xhr.readyState === XMLHttpRequest.DONE)
      callback(xhr.status === 200 ? xhr.responseText : null);
  };
    
  xhr.open('GET', url, true);
  xhr.send();
};

var translateWord = function(word, fromLang, toLang, key) {
  var baseUrl = 'https://translate.yandex.net/api/v1.5/tr.json/translate';
  
  var url = baseUrl + '?key=' + key + '&text=' + word + '&lang=' + fromLang + '-' + toLang;
  
  getRequest(url, function(data) {
    if (data !== null) {
      var translation = JSON.parse(data).text[0];
      console.log(translation);
    } else {
      console.log('ERROR: Could not translate word at this time.');
    }
  });
};

var languageCodes = {
  'English': 'en',
  'Spanish': 'es',
  'Italian': 'it',
  'Chinese': 'zh',
  'German' : 'de',
  'Russian': 'ru',
  'French' : 'fr',
  'Hebrew' : 'he'
};

translateWord(word, languageCodes[langOne], languageCodes[langTwo], KEY);