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antd表单项非必填为空时获取的值为undefined？

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antd表单项非必填为空时获取的值为undefined？

如题，有没有什么办法能有效过滤掉所有非必填值为undefined的项，这些项有的在嵌套在第二层，有的在第三层？


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JSON.parse(JSON.stringify(values))


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