See available properties (with or without chain) on a Javascript Object

relection.js

// See a list of properties for a givin oject (includeing all in prototype chain)
for(var prop in obj){
  console.log(prop ": " + obj[prop])
}


// See only properties in the object (no protochain)
for(var prop in obj){
  if (obj.hasOwnProperty(prop)){
    console.log(prop ": " + obj[prop])
  }
}