Add/set variables

[qwenger]

Hi,

quickjs provides ways of evaluating code and getting the result (ctx.eval), adding functions (ctx.add_callable) and getting values (ctx.get).

AFAICS, there is currently no proper way of adding/setting variables.

I've been able to work around this via json dumping:

ctx.eval(f"my_variable_name = {json.dumps(variable)};")

It however feels a bit hacky. I think that it would be nice to be able to set variables directly, e.g. as

ctx.set("my_variable_name", variable)

or by adding an optional argument to eval, which would bind the return value (js-side) of the evaluation to a variable:

ctx.eval(variable, "my_variable_name")

[PetterS]

A set method on a context sounds reasonable.

[qwenger]

Done in #55.