Empty Object

Today I learned this code doesn't work as I think it would.

objectName !== {} ? displayObject : null

The correct ways to check for empty objects are:

use Object.keys
```
Object.keys(obj).length === 0
```
Note: We can also check this using Object.values and Object.entries.
use JSON.stringify
```
JSON.stringify(obj) === '{}'
```
Looping over object properties with for…in

function isEmpty(obj) {
    for(let prop in obj) {
        if(obj.hasOwnProperty(prop))
            return false;
    }
    return true;
}