我正在尝试玩 React。
我遵循了 NextJs 的“入门”教程(link)并且我已经成功创建了新项目。
一旦我尝试导入第三方插件,例如当前设备 or 平滑滚动条我收到以下错误:
ReferenceError: window is not defined
(anonymous function)
/c/xampp/htdocs/nextjs/node_modules/smooth-scrollbar/dist/smooth-scrollbar.js:1:262
Module._compile
module.js:652:30
Module._extensions..js
module.js:663:10
Module.load
module.js:565:32
tryModuleLoad
module.js:505:12
Function.Module._load
module.js:497:3
Module.require
module.js:596:17
require
internal/module.js:11:18
smooth-scrollbar
webpack:/external "smooth-scrollbar":1
> 1 | module.exports = require("smooth-scrollbar");
View compiled
__webpack_require__
./webpack/bootstrap:21
18 | // Execute the module function
19 | var threw = true;
20 | try {
> 21 | modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
| ^ 22 | threw = false;
23 | } finally {
24 | if(threw) delete installedModules[moduleId];
View compiled
Module../pages/index.js
/_next/development/server/static/development/pages/index.js:221:74
__webpack_require__
./webpack/bootstrap:21
18 | // Execute the module function
19 | var threw = true;
20 | try {
> 21 | modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
| ^ 22 | threw = false;
23 | } finally {
24 | if(threw) delete installedModules[moduleId];
View compiled
3
/_next/development/server/static/development/pages/index.js:383:18
__webpack_require__
./webpack/bootstrap:21
18 | // Execute the module function
19 | var threw = true;
20 | try {
> 21 | modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
| ^ 22 | threw = false;
23 | } finally {
24 | if(threw) delete installedModules[moduleId];
View compiled
▶ 2 stack frames were collapsed.
我在文件 C:\xampp\htdocs\nextjs\pages\index.js 中进行的导入
is just:
import Scrollbar from 'smooth-scrollbar';
import device from 'current-device'
非常感谢您的帮助!
Next.js 有服务器端和客户端,
window 未在服务器端定义,'smooth-scrollbar' 和 'current-device' 可能都使用 window,
您可以使用 next 的动态导入ssr: false
仅在客户端使用某些包:
import dynamic from 'next/dynamic'
const DynamicComponentWithNoSSR = dynamic(
() => import('package'),
{ ssr: false }
)
// ...
// use it in render like:
<DynamicComponentWithNoSSR />
欲了解更多信息,请访问docs
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