I want to serialize an object o, which has a method called, let's say, a. The object also holds a variable, which name is _a.

I now want to parse this object to a JSON string. But the JSON looks something like this:

{
    "_a": "",
    ...
}

Question

Is there a way, to comfortably remove/ replace the _ character(s) (or any character(s)).

What I have tried

1. The rename parameter of the JSON.stringify() method.
   1.1. Didn't work, because you can only return altered values and no keys.
   
2. Iterating all keys of an object, deleting them and creating a new renamed key, and assigning the value (see code below).
   2.1. This works, but is not really readable and nasty, when having "sub-object".

Object.keys(o).forEach(key => {
    Object.defineProperty(o, key.replace("_", ""),
        Object.getOwnPropertyDescriptor(o, key));
    delete o[key];
});