Unexpected result in exponentiation assignment

[elasmojs]

Hi

There is an unexpected result in exponentiation assignment

let a = 3;
console.log(a **= 'hello');

expected output: NaN
got: 1

thanks

[HalidOdat]

This has already been fixed in master branch when #520 landed (fixed all operation +, -, &, |, **), I'm assuming you are using version 0.9, right?

Edit: Created a PR for testing the above mentioned code also removed deprecated function #616

[HalidOdat]

Closing this issue since it is fixed :)