const Book = { price: 32 } const book = Object.create(Book); book.type = 'Math'; delete book.price; delete book.type; console.log(book.price); console.log(book.type); 执行以上代码后，输出的结果是() | 学就创题库

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单选题

const Book = {
price: 32
}
const book = Object.create(Book);
book.type = 'Math';
delete book.price;
delete book.type;
console.log(book.price);

console.log(book.type);

执行以上代码后，输出的结果是()

A.

undefined, undefined

B.

32, undefined

C.

undefined, 'Math'

D.

32, 'Math'

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[单选题] 代码片段1: check('first'); function check(ars){ console.log(ars); } 代码片段2: check('second');...

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