I'm trying to convert my date string into an array.

Date string: `var date = "2017,03,23";`

Desired result: `[2017,03,23]`

---

Here is what I tried:

```
var new_date = date.split(','); // result: ["2017", "03", "23"]

```

I want `[2017,03,23]`. 

How do I do this?