Can an Object be false?

Question

Is there any way to make an object return false in javascript?

var obj = new Object();

console.log(!!obj) // prints \"true\" even if it\'s empty
         


        

Answer 1

A null "object" (really value) will return false.

var obj = null;

console.log(!!obj);

If you wanted to check if it has no properties, you might try:

var obj = new Object();
var empty = true;
for (var p in obj) {
    if (obj.hasOwnProperty(p)) {
       empty = false;
       break;
    }
}
console.log(empty);