Why not eval() JSON?

Question

As far as I know it is considered bad practice to eval() JSON objects in JavaScript, because of security. I can understand this concern if the JSON comes from a

Answer 1

Tip: in asp.net using JSON is considered bad becuase parsing of DateTime differs between the server and the client so we use a special function to deserialize the date in javascript. I'm not sure if PHP has the same issue but its worth mentioning though.