data?.map这种写法合理吗？炫技？

作者站长头像
站长
· 阅读数 4

我见过的一种很奇特的写法，这是炫技吗？

  // 初始化高级筛选选项
  const fetchSelectOptions = async () => {
    const res = await getMemberSupplierLifecycleStatusList()

    if (res.code === 1000) {
      const { data } = res
      return {
        status: data?.map((item) => ({ label: item.message, value: item.code })),
      }
    }
    return {}
  }

data?.map这种写法合理吗？

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1个回答
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test
2024-06-19

?. 可选链运算符, 与它相似的 含有问号的 ?:, 两个符号相连的 += ==, 甚至三个符号相连的 ===, 它们算炫技的话, 那 ?. 算炫技.

另外 JS 中还有一些比较实用的语法, 比如 ??= 逻辑空赋值, << >> <<= >>= 移位运算, MDN 有总结, 可以系统地了解下: 可选链运算符（?.） - JavaScript | MDN

最后补一下我认为的炫技: let _ = []+[] => _ = '', 花里胡哨无意义的复杂化, 在此基础上纯符号弹框 hello world:

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