In the code below I want to hide the contents of the key(speaker) key being viewed by browser console.
var App_Version
Nice question even I had came across such situation where my API key and authentication token was visible at client side.Obfuscating a client side Javascript file is best option. You can use UglifyJS for obfuscating the clientside code. And also there must be permissions on the server side for creating and deleting objects.