I currently have an object like this

```
let obj = {
    "5": "961131",
    "8": "961127",
    "5,5": "961107",
    "7": "961103",
    "9.5": "961115"
}

```

Is it possible to sort it by its keys in ascending order? The result I want to achieve would be:

```
obj = {
    "5": "961131",
    "5,5": "961107",
    "7": "961103",
    "8": "961127",
    "9.5": "961115"
}

```

It would probably involve creating a new object which I don't mind, just not sure how to get this done