KouShuiYu

不太熟悉 TypeScript, 这种问题怎么优雅的解决? 提示:不能调用可能是“未定义”的对象。ts(2722)

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  •   KouShuiYu · Sep 23, 2021 · 1637 views
    This topic created in 1800 days ago, the information mentioned may be changed or developed.
    const checkCustom = (rule:rule, value: unknown) => {
      const { custom } = rule;
      if (toRawType(custom) !== 'Function') {
        throw new Error('custom need function type values');
      }
      return custom(rule, value);
    };
    
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