title: Conversion object into array of objects
body: <p>I am trying to combine these two object array into one object array with combining each property with their own values.</p>
  
  <pre><code>var a ={'a':[1,2,3,4],'b':[2,3,4,5]}
  
  to [{'a':1,'b':2},{'a':2,'b':3},{'a':3,'b':4},{'a':4,'b':5}]
  </code></pre>
  
  <p>How can I achieve this using <code>lodash</code> library?</p>