Why typeof 1/0 is NaN?

Question

Chrome console on typing typeof 1/0 gives NaN But it is not true, because 1/0 is Infinity, which is not NaN. How is it possible?

Accepted Answer

That's because the `typeof` operator has more precedence than `/`. Your code is equivalent to:

```
(typeof 1) / 0
```

Which is `NaN`.

Issuing:

```
typeof (1 / 0)
```

Gives the expected result, `"number"`.

Solution