title: JSON forEach get Key and Value
body: <p>I have the following <code>forEach</code> loop over a JSON object called <code>obj</code>:</p>
  <pre><code>Object.keys(obj).forEach(function(){});
  </code></pre>
  <p>How can I make it <code>console.log</code> both <code>key</code> and <code>value</code> of each item inside the object?</p>
  <p>Something like this:</p>
  <pre><code>Object.keys(obj).forEach(function(k, v){
      console.log(k + ' - ' + v);
  });
  </code></pre>