title: Is lodash _.size() faster than JS length property?
body: <p>The article (link below) suggests that using the length property on a string creates an object reference which unnecessarily slows the function down.</p>
  
  <p><a href="http://www.webreference.com/programming/javascript/jkm3/2.html" rel="noreferrer">http://www.webreference.com/programming/javascript/jkm3/2.html</a></p>
  
  <p>In this context, what is the advantage of using lodash _.size() ?  Does it perform any differently than the (native...?) length property?  </p>
  
  <p>If you're counting an array or keys in an object, is there any benefit to using lodash size instead of the length property?  </p>