Created
November 1, 2020 10:06
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JavaScript objects in python
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| class JSObject: | |
| def __init__(self): | |
| self.__dict__['_props'] = {} | |
| def __setattr__(self, name, value): | |
| self.__dict__['_props'][name] = value | |
| def __getattr__(self, name): | |
| return self.__dict__['_props'].get(name) | |
| def __setitem__(self, name, value): | |
| self.__dict__['_props'][name] = value | |
| def __getitem__(self, name): | |
| return self.__dict__['_props'].get(name) | |
| class JSArray(list, JSObject): | |
| def __init__(self, *args, **kwargs): | |
| JSObject.__init__(self) | |
| super().__init__(*args, **kwargs) | |
| def __setitem__(self, name, value): | |
| if isinstance(name, int) and name >= 0: | |
| list.__setitem__(self, name, value) | |
| else: | |
| JSObject.__setitem__(self, name, value) | |
| def __getitem__(self, name): | |
| if isinstance(name, int) and name >= 0: | |
| return list.__getitem__(self, name) | |
| return JSObject.__getitem__(self, name) | |
| def __repr__(self): | |
| out = '' | |
| for i, item in enumerate(self): | |
| out += f'{i}: {item}\n' | |
| for key, value in self._props.items(): | |
| out += f'{key}: {value}\n' | |
| return out | |
| x = JSArray([1, 2, 3]) | |
| x[-1] = 'lol' | |
| x.answer = 42 | |
| print(x) | |
| # Output: | |
| # 0: 1 | |
| # 1: 2 | |
| # 2: 3 | |
| # -1: lol | |
| # answer: 42 |
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