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@ -1166,7 +1166,7 @@ let runtimeError = {
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};
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```
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如果扩展运算符的参数是`null`或`undefined`,这个两个值会被忽略,不会报错。
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如果扩展运算符的参数是`null`或`undefined`,这两个值会被忽略,不会报错。
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```javascript
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let emptyObject = { ...null, ...undefined }; // 不报错
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