Is object empty? [duplicate]

Answer 1

No need for a library.

function(){ //must be within a function
 var obj = {}; //the object to test

 for(var isNotEmpty in obj) //will loop through once if there is a property of some sort, then
    return alert('not empty')//what ever you are trying to do once

 return alert('empty'); //nope obj was empty do this instead;
}