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redux 数据更新了 需要2次才会渲染试图 #1798
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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~ |
检查一下你的 reducer 吧 |
reducer 没问题吧 代码如下 case types.DELETE:
const MergePicsPath = state.MergePicsPath || []
MergePicsPath.splice(action.index, 1)
return {
...state,
MergePicsPath,
} 修改方案代码如下 case types.DELETE:
const MergePicsPath = state.MergePicsPath || []
MergePicsPath.splice(action.index, 1)
return {
...state,
time: new Date().getTime(),
MergePicsPath,
} 在
let MergePicsPath = ['https://github.com/NervJS/taro/issues/1798', 'https://zan.com'] |
case types.DELETE:
const MergePicsPath = state.MergePicsPath || []
MergePicsPath.splice(action.index, 1)
return {
...state,
MergePicsPath,
} 这个 reducer 有问题,不要直接修改原 state 里的 MergePicsPath 数据,需要把数组浅拷贝一份,你应该这样做 const MergePicsPath = state.MergePicsPath.concat() || []
MergePicsPath.splice(action.index, 1) |
Thanks @luckyadam |
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点击第一次正常渲染, 点击第二次 没有 渲染, 在点击第三次的时候 渲染 3个列表
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