解决了，谢谢！-对于感兴趣的任何人，我都试图在化简器中访问state.tasks.data，但是由于范围的原因，我可以通过state.data访问它，因为我已经在任务片中了。
编辑：我的突变状态错误问题现已解决，这是由于直接对状态进行排序而没有从中创建新数组。concat()之前已经解决了sort()。
我的新问题是state我removeTask reducer内部不再可用。现在返回未定义。如果我console.log(state)那么它将返回一个Proxy：
[[Handler]]: null,
[[Target]]: null,
[[IsRevoked]]:true
编辑2：我发现代理服务器是由于immer在幕后进行的，它会对突变做一些事情，从而以state不突变的方式使用它。我还没有解决state.tasks.data返回问题undefined。
我正在使用react-redux和redux-toolkit。我只是在学习Redux，所以我的头被炸了，没有任何线索。
我已经在他们网站上的redux-toolkit基本教程中关注了一些信息，该信息说您可以在化简器中对状态进行突变，因为工具箱在后台进行了某些操作以阻止其实际对状态进行突变：
https://redux-toolkit.js.org/tutorials/basic-tutorial
无论如何，它们提供的反例都处于突变状态。增量减少器返回state += 1-正常工作
现在，我有了自己的东西，将已initial state放置的对象数组设置为集合。请参见下文：
tasksSlice.js：
import { createSlice } from "@reduxjs/toolkit";
import data from "data/tasks_data.json";
export const tasksSlice = createSlice({
name: "tasks",
initialState: {
data: data,
},
reducers: {
removeTask: (state, action) => {
const { id } = action.payload;
const { data } = state.tasks;
data = data.filter((item) => id !== item.id);
},
},
});
export const { removeTask } = tasksSlice.actions;
export const selectTasks = (state) => state.tasks.data;
export default tasksSlice.reducer;
现在，我的tasks组件中列出了任务。使用taskItem组件列出了每个任务。在taskItem组件内部，我有一个删除按钮，我已将onClick事件设置为使用removeTaskreducer。
<button
className={`${styles.task_button} ${styles.delete}`}
onClick={() => dispatch(removeTask(id))}
>
<MdDeleteForever />
</button>
这会将的“ customer_id”字段从中传递data到任务列表中initial state。
我希望能够删除任务，因此我试图通过过滤state.tasks.data并返回id匹配对象的所有内容（如工具包所说的那样）对其进行变异。
不幸的是，我不断收到错误消息：
Error: Invariant failed: A state mutation was detected between dispatches, in the path 'tasks.data.0'. This may cause incorrect behavior.
tasks.js -Tasks容器组件（相当混乱）：
import React, { useState, useEffect } from "react";
import SectionHeading from "components/SectionHeading/SectionHeading";
import { useSelector } from "react-redux";
import { selectTasks } from "redux/tasks/tasksSlice";
import TaskSelect from "./TaskSelect";
import TaskTabs from "./TaskTabs";
import TaskItem from "./TaskItem";
import styles from "./Tasks.module.scss";
// import tasks_data from "data/tasks_data.json";
const Tasks = () => {
const tasksData = useSelector(selectTasks);
console.log(tasksData);
const [taskTab, setTaskTab] = useState({ activeTask: "All" });
const [size, setSize] = useState({ width: 65, left: 0 });
// const [tasksData, setTasksData] = useState(tasks_data);
const taskTypes = [
"All",
"Quotes",
"Domains",
"SSL Setup",
"SEO Setup",
"Other",
];
useEffect(() => {
const activeBar = document.querySelector(".active_bar");
const active = document.querySelector(".active_btn");
if (size) {
activeBar.style.width = `${active.offsetWidth}px`;
activeBar.style.transform = `translate(${active.offsetLeft}px, ${active.offsetTop}px)`;
}
});
const setActive = (e, type) => {
setTaskTab({ activeTask: type });
setSize(false);
const activeBar = document.querySelector(".active_bar");
activeBar.style.width = `${e.target.offsetWidth}px`;
activeBar.style.transform = `translate(${e.target.offsetLeft}px, ${e.target.offsetTop}px)`;
};
const changeActive = (e) => {
setTaskTab({ activeTask: e.target.value });
};
const getDaysDue = (days) => {
const { days_due, overdue } = days;
if (overdue === true) {
if (days_due === -1) {
return `${Math.abs(days_due)} day overdue`;
} else {
return `${Math.abs(days_due)} days overdue`;
}
} else if (days_due === 0) {
return "Today";
} else if (days_due === 1) {
return `${days_due} day`;
} else if (days_due > 1) {
return `${days_due} days`;
} else {
return "Error getting days due";
}
};
return (
<article className="tasks">
<TaskTabs
taskTypes={taskTypes}
click={setActive}
activeTask={taskTab.activeTask}
data={tasksData}
/>
<TaskSelect taskTypes={taskTypes} change={changeActive} />
<SectionHeading>Tasks: {taskTab.activeTask}</SectionHeading>
<section className={styles.tasks_list}>
{tasksData
.sort((a, b) => a.days.days_due - b.days.days_due)
.filter((task) =>
taskTab.activeTask === "All"
? true
: task.type === taskTab.activeTask
)
.map(
({
customer_id,
account_name,
days,
days: { days_due, overdue },
type,
}) => {
return (
<TaskItem
key={customer_id}
id={customer_id}
name={account_name}
days={getDaysDue(days)}
overdue={overdue}
daysDue={days_due}
type={type}
/>
);
}
)}
</section>
</article>
);
};
export default Tasks;
TaskItem.js：
import React from "react";
import { useDispatch } from "react-redux";
import { removeTask } from "redux/tasks/tasksSlice";
import { Link } from "react-router-dom";
import { MdModeEdit, MdDeleteForever } from "react-icons/md";
import styles from "./TaskItem.module.scss";
const TaskItem = ({ id, name, days, daysDue, overdue, type }) => {
const dispatch = useDispatch();
return (
<article
className={`
${styles.task}
${daysDue === 0 ? `${styles.today}` : ""}
${overdue === true ? `${styles.overdue}` : ""}
`}
>
<Link to="/" className={styles.task_name}>
{name}
</Link>
<span
className={`${styles.task_days} ${
daysDue === 0 ? `${styles.task_days__today}` : ""
} ${overdue ? `${styles.task_days__overdue}` : ""}`}
>
<strong>{type}</strong>: {days}
</span>
<div className={styles.task_buttons}>
<button className={`${styles.task_button} ${styles.edit}`}>
<MdModeEdit />
</button>
<button
className={`${styles.task_button} ${styles.delete}`}
onClick={() => dispatch(removeTask(id))}
>
<MdDeleteForever />
</button>
</div>
</article>
);
};
export default TaskItem;
tasks_data.json：
[
{
"account_name": "Misty's Gym",
"customer_id": 1,
"days": {
"days_due": 1,
"overdue": false
},
"type": "Quotes"
},
{
"account_name": "Brock's Diner",
"customer_id": 2,
"days": {
"days_due": 0,
"overdue": false
},
"type": "Quotes"
},
{
"account_name": "Samurai Champloo's Fish Bar",
"customer_id": 3,
"days": {
"days_due": 5,
"overdue": false
},
"type": "SSL Setup"
},
{
"account_name": "Tiny Rebel",
"customer_id": 4,
"days": {
"days_due": -7,
"overdue": true
},
"type": "Domains"
},
{
"account_name": "Matalan",
"customer_id": 5,
"days": {
"days_due": 13,
"overdue": false
},
"type": "Other"
},
{
"account_name": "Lowes Soft Drinks",
"customer_id": 6,
"days": {
"days_due": 1,
"overdue": false
},
"type": "SEO Setup"
},
{
"account_name": "Snack 'n' Go",
"customer_id": 7,
"days": {
"days_due": -2,
"overdue": true
},
"type": "Quotes"
},
{
"account_name": "Jeronemo",
"customer_id": 8,
"days": {
"days_due": 5,
"overdue": false
},
"type": "Quotes"
},
{
"account_name": "Tom's Mouse Traps",
"customer_id": 9,
"days": {
"days_due": 0,
"overdue": false
},
"type": "Domains"
},
{
"account_name": "Contiente",
"customer_id": 10,
"days": {
"days_due": 2,
"overdue": false
},
"type": "Domains"
},
{
"account_name": "Um Bongo",
"customer_id": 11,
"days": {
"days_due": -1,
"overdue": true
},
"type": "SEO Setup"
}
]
我到底在做什么错？我还能如何设置状态？
干杯。
tasksData.sort（在您的Tasks组件中）修改tasksData存储中的原始数组，同样sort如此。预先制作一个新数组，例如通过tasksData.concat().sort(...
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