Change key name in JavaScript object

Question

I am checking the attributes in a JavaScript object, replacing some of the keys by deleting the prefix \"element\" and saving the new values in another object.

Answer 1

key is not original json because you have remove element_ prefix

var keys = Object.keys(json);
for (var j=0; j < keys.length; j++) {
   key = keys[j].replace("element_", "");
   var _key = keys[j];
   switch(key) {
   default :
      tmp[key] = json[_key];
      break;
   }
}