[英]How add new field into reducer using Immer.js?
For example,例如,
state = {
data: {}
}
How can I add a new nested field into an object?如何将新的嵌套字段添加到 object 中? I cannot set that field, because have an error
Cannot read property 'date' of undefined
我无法设置该字段,因为出现错误
Cannot read property 'date' of undefined
const reducer = produce((draft, action) => {
switch (action.type) {
case 'ACTION_SUCCESS':
draft.data.children.date = action.response;
}
});
As a result I want:结果我想要:
data: {
children: {
data: 'date'
}
}
}
Normal JS object manipulation rules apply here.此处适用普通 JS object 操作规则。 You can't write
obj.xyz =
if there is no .y
field yet - you have to create that first.如果还没有
.y
字段,您不能编写obj.xyz =
- 您必须先创建它。
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