title: How to concatenate/flatten an object's VALUES to an array?
body: <p>I have the following object:</p>
  
  <pre><code>languages:
    english: [ 1, 2, 3 ]
    german: [ 4, 5, 6 ]
  </code></pre>
  
  <p>My goal is to get an array of all values of <code>languages</code>so that the result looks like <code>[ 1, 2, 3, 4, 5, 6 ]</code>.</p>
  
  <p>This is what I have tried:</p>
  
  <pre><code>(word for word in value for key, value of languages)
  </code></pre>
  
  <p>or</p>
  
  <pre><code>(word for word in languages[lang] for lang in Object.keys languages)
  </code></pre>
  
  <p>Both methods return a two dimensional array the arrays as first dimension and the values as second dimension</p>
  
  <p><strong>Is there a way to get the desired result using a one-liner?</strong></p>