title: Dynamically Reading Array Values form a JSON Object
body: <p>I am working on a function that accepts a JSON object as a parameter. Each property of the object passed in will be an array. I need to determine the length of each of these arrays.</p>
  
  <p>What I won't know in advance are: the names of the properties, or how many properties there are.</p>
  
  <p>How can I determine the length of each array? Again, I can't refer to any of the properties/keys explicitly because I won't know their names ahead of time. How do I reference each unknown property as an array?</p>
  
  <p>Thank you in advance,
  -RS</p>