[рони]

AntonMs,

var obj = {
b:{"param1" : 11, "param2": 22, "param3" : 33},
a:{"param1" : 1, "param2": 2, "param3" : 3},
c:{"param1" : 111, "param2": 222, "param3" : 333}
};

function fn(obj, name)
{
   return Object.keys(obj).sort((a,b)=> obj[a][name] - obj[b][name] )
}

alert(fn(obj, "param2"));