Question

Assume I have an object:

var obj = {
  foo:"bar",
  fizz:"buzz"
};

I need to access a property of that object dynamically like so:

var objSetter = function(prop,val){
  obj[prop] = val;
}

No problems there, except for that prop needs to be case insensitive in case the property name is passed into the function as, say, Foo instead of foo.

So how can I point to an object’s property by name without regard to case? I would like to avoid iterating the entire object if possible.

Answer 1

Compare all the properties of obj with prop.

var objSetter = function(prop,val){
  prop = (prop + "").toLowerCase();
  for(var p in obj){
     if(obj.hasOwnProperty(p) && prop == (p+ "").toLowerCase()){
           obj[p] = val;
           break;
      }
   }
}