Javascript 在node express中的DELETE endpoint中找不到参数
我无法在我的删除端点中访问提供的url参数，我不知道为什么。获取、发布和放置工作都很好Javascript 在node express中的DELETE endpoint中找不到参数,javascript,node.js,express,Javascript,Node.js,Express,我无法在我的删除端点中访问提供的url参数，我不知道为什么。获取、发布和放置工作都很好 const express = require("express"); const app = express(); app.use(express.json()); const courses = [ {id: 1, name: 'course1'}, {id: 2, name: 'course2'}, {id: 3, name: 'course3'}, ]; app.dele
const express = require("express");
const app = express();
app.use(express.json());
const courses = [
{id: 1, name: 'course1'},
{id: 2, name: 'course2'},
{id: 3, name: 'course3'},
];
app.delete('/api/courses/:id', (res, req) => {
console.log(req.params.id);
});
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Error</title>
</head>
<body>
<pre>TypeError: Cannot read property 'id' of undefined
<br> at app.delete (C:\Users\Ove\WebstormProjects\Vidley\index.js:84:28)
<br> at Layer.handle [as handle_request] (C:\Users\Ove\WebstormProjects\Vidley\node_modules\express\lib\router\layer.js:95:5)
<br> at next (C:\Users\Ove\WebstormProjects\Vidley\node_modules\express\lib\router\route.js:137:13)
<br> at Route.dispatch (C:\Users\Ove\WebstormProjects\Vidley\node_modules\express\lib\router\route.js:112:3)
<br> at Layer.handle [as handle_request] (C:\Users\Ove\WebstormProjects\Vidley\node_modules\express\lib\router\layer.js:95:5)
<br> at C:\Users\Ove\WebstormProjects\Vidley\node_modules\express\lib\router\index.js:281:22
<br> at param (C:\Users\Ove\WebstormProjects\Vidley\node_modules\express\lib\router\index.js:354:14)
<br> at param (C:\Users\Ove\WebstormProjects\Vidley\node_modules\express\lib\router\index.js:365:14)
<br> at Function.process_params (C:\Users\Ove\WebstormProjects\Vidley\node_modules\express\lib\router\index.js:410:3)
<br> at next (C:\Users\Ove\WebstormProjects\Vidley\node_modules\express\lib\router\index.js:275:10)
</pre>
</body>
</html>
错误
TypeError:无法读取属性'；身份证号码'；未定义的
在app.delete（C:\Users\Ove\webstoreprojects\Vidley\index.js:84:28）
在Layer.handle[作为handle\u请求]（C:\Users\Ove\webstoreprojects\Vidley\node\u modules\express\lib\router\Layer.js:95:5）
下一步（C:\Users\Ove\webstoreprojects\Vidley\node\u modules\express\lib\router\route.js:137:13）
在Route.dispatch（C:\Users\Ove\webstoreprojects\Vidley\node\u modules\express\lib\router\Route.js:112:3）
在Layer.handle[作为handle\u请求]（C:\Users\Ove\webstoreprojects\Vidley\node\u modules\express\lib\router\Layer.js:95:5）
在C:\Users\Ove\webstoreprojects\Vidley\node\u modules\express\lib\router\index.js:281:22
在参数处（C:\Users\Ove\webstoreprojects\Vidley\node\u modules\express\lib\router\index.js:354:14）
在参数处（C:\Users\Ove\webstoreprojects\Vidley\node\u modules\express\lib\router\index.js:365:14）
在Function.process_参数处（C:\Users\Ove\webstoreprojects\Vidley\node_modules\express\lib\router\index.js:410:3）
下一步（C:\Users\Ove\webstoreprojects\Vidley\node\u modules\express\lib\router\index.js:275:10）
谁能给我解释一下这里发生了什么事？只有DELETE端点的行为是这样的，所有其他端点都可以Express传递处理程序
（req，res）（res，req）reqres参数GET：id-