Javascript 反应|无法发布| mongodb

我正在做一个论坛，直到现在一切都很有趣，至少我这么认为。。。 我进入了注册页面，做了所有这些，但是，当我从页面发送post请求时，它会导致服务器出错

错误：

(node:15264) UnhandledPromiseRejectionWarning: TypeError: user.issModified is not a function
    at model.<anonymous> (D:\discussa\server\models\User.js:18:15)
    at callMiddlewareFunction (D:\discussa\server\node_modules\kareem\index.js:483:23)
    at model.next (D:\discussa\server\node_modules\kareem\index.js:58:7)
    at _next (D:\discussa\server\node_modules\kareem\index.js:107:10)
    at D:\discussa\server\node_modules\kareem\index.js:508:38
    at processTicksAndRejections (internal/process/task_queues.js:75:11)
(Use `node --trace-warnings ...` to show where the warning was created)
(node:15264) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 2)
(node:15264) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate 
the Node.js process with a non-zero exit code.

以下是输出：

虽然目前，我认为这没有任何用处，但它已经证明了某种web页面正在尝试路径

我至少检查了客户机和服务器50多次，我似乎无法理解这个问题，但我确实知道这与服务器的某种错误配置有关

下面是根目录和客户机目录的GitHub repo，因为它们不会在同一个repo中同时进行

如果需要用于创建客户端的模块，请确保在客户端目录中输入，然后执行以下操作：

npm install @testing-library/jest-dom @t@testing-library/user-event esting-library/react axios bcryptjs body-parser mongoose nodemon react react-dom react-router-dom react-scripts validator web-vitals

或

如果有人能做一些测试和调查，并能告诉我需要做什么/修复什么，我将不胜感激

---

另外，如果您确实测试了它，请确保在服务器目录中的.env文件中添加一个数据库密钥

好的，我将把它放在那里，我是个白痴，我没有正确读取错误，我没有注意到我犯了一个非常愚蠢的错误，两个简单的打字错误。 现在都修好了

修复：server/models/User.js

const mongoose = require('mongoose');
const bcrypt = require('bcryptjs');
const Schema = mongoose.Schema;

const UserSchema = new Schema({
    name: String,
    email: String,
    password: String,
    createdAt: {
        defualt: Date.now(),
        type: Date
    },
    role: String,
});

UserSchema.pre( 'save', async function (next) {
    const user = this;
    if (!user.issModified('passwprd')) return next();
              ^^^^^^^^^^^  ^^^^^^^^
// Changed to if (!user.issModified('passwprd')) return next();

    const salt = await bcrypt.genSalt(10)
    const hash = await bcrypt.hash(user.password, salt);
    user.password = hash;
    next()
});

const User = mongoose.model( 'User', UserSchema);
module.exports = User;

const mongoose = require('mongoose');
const bcrypt = require('bcryptjs');
const Schema = mongoose.Schema;

const UserSchema = new Schema({
    name: String,
    email: String,
    password: String,
    createdAt: {
        defualt: Date.now(),
        type: Date
    },
    role: String,
});

UserSchema.pre( 'save', async function (next) {
    const user = this;
    if (!user.issModified('passwprd')) return next();
              ^^^^^^^^^^^  ^^^^^^^^
// Changed to if (!user.issModified('passwprd')) return next();

    const salt = await bcrypt.genSalt(10)
    const hash = await bcrypt.hash(user.password, salt);
    user.password = hash;
    next()
});

const User = mongoose.model( 'User', UserSchema);
module.exports = User;