I have this:

```
data_a = [{
    "name": "Johnny", 
    "sport":"Racing"
}];

data_b = [{
    "member": 12345
}];

```

How to combine into:

```
data_new = [{
    "member": 12345,
    "name": "Johnny", 
    "sport":"Racing"
}];

```

Any answer are greatly appreciated. Thanks!