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JSX 内 三元运算 判断之后,进行map渲染,会出现 不管true和false,2个都执行的情况 #1696

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juhuaxia opened this issue Dec 26, 2018 · 1 comment

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@juhuaxia
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{
            false ? 
            (
              <PickerView className="popup-view">
                <PickerViewColumn className="popup-view-column">
                    { 
                      range.map((item, index) => {
                        console.log('singleSelect')

                        return isObject(item) ? (<View key={index}>{ item[rangeKey] }</View>) : (<View key={index}> { item }</View>)
                      })
                    }
                </PickerViewColumn>
              </PickerView>
            ) : 
            (
              <PickerView className="popup-view">
                {
                  range.map((items, index) => {
                    console.log('mulitSelect')

                    return (
                      <PickerViewColumn key={index} className="popup-view-column">
                        { 
                          items.map((item, index) => {
                            return isObject(item) ? (<View key={index}>{ item[rangeKey] }</View>) : (<View key={index}> { item }</View>)
                          })
                        }
                      </PickerViewColumn>
                    )
                  })
                }
              </PickerView>
            )
          }

发现,即使false。 还是会将 'mulitSelect' 这个logo给打印出来。
@taro-bot
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taro-bot bot commented Dec 26, 2018

欢迎提交 Issue~

如果你提交的是 bug 报告,请务必遵循 Issue 模板的规范,尽量用简洁的语言描述你的问题,最好能提供一个稳定简单的复现。🙏🙏🙏

如果你的信息提供过于模糊或不足,或者已经其他 issue 已经存在相关内容,你的 issue 有可能会被关闭。

Good luck and happy coding~

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