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fix(Table): fix TS error when colKey is optional - #4676
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getCellKey 的 colKey 形参声明为 string，但 BaseTableCol.colKey 是可选 字段（string | undefined）。消费方开启 strictNullChecks 时（如 uniapp HBuilderX H5 构建）会报 TS2345。 在调用处补 `|| ''` 兜底；由于 getCellKey 内部本来就有 `colPart = colKey || colIndex`，传空串与传 undefined 运行时行为完全一致， 无副作用。
novlan1
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betavs,
jarmywang,
jin0209 and
zydemail
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October 16, 2026 02:49
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getCellKey 的 colKey 形参声明为 string，但 BaseTableCol.colKey 是可选 字段（string | undefined）。消费方开启 strictNullChecks 时（如 uniapp HBuilderX H5 构建）会报 TS2345。
在调用处补
|| ''兜底；由于 getCellKey 内部本来就有colPart = colKey || colIndex，传空串与传 undefined 运行时行为完全一致， 无副作用。🤔 这个 PR 的性质是？
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