To add a value and assign it back to itself, I would do this:

```
x = x + y;

```

For making that shorthand, I can use the [add assignment operator](https://msdn.microsoft.com/en-us/library/sa7629ew.aspx) like this:

```
x += y;

```

Is there a shorthand like this for the && and || operator for this?:

```
x = x && y;

```

I tried the below, the results is not the same as above:

```
x &= y;

```