javascript - Webpack 不能要求 Popper

Question

我正在尝试将我的 javascript 文件移动到 Webpack。我对 Webpack 不太熟悉，所以我不确定我是否正确编码了其中的任何内容。我正在尝试加载 jquery-ui、popper 和 bootstrap 4。但是，在需要 Popper 时出现错误。请注意，我正在为 Ruby on Rails 使用 Wepacker gem。

我已在environment.js 文件中包含以下代码，以便在每个文件中自动包含 jQuery。

const { environment } = require('@rails/webpacker')

const webpack = require('webpack')
environment.plugins.append('Provide', new webpack.ProvidePlugin({
  $: 'jquery',
  jQuery: 'jquery'
}))

module.exports = environment

这部分有效。因此，从那里我运行了yarn add jquery-ui。

然后在我的/pack/application.js 文件中包含 require('jquery-ui')。

从我的 js 文件中，以下代码将打印到我的控制台:

$(document).ready(function(){
    if (jQuery.ui) {
      console.log("loaded");
    }
});

此后，我尝试使用 yarn add popper 安装并要求 popper 。

然后从我的 document.ready 函数内部调用 popper，我收到错误:

$(document).ready(function(){

    console.log(window.Popper)

});

错误:

Uncaught Error: Module build failed (from ./node_modules/babel-loader/lib/index.js):
SyntaxError: /home/ubuntu/environment/node_modules/path-platform/path.js: 'return' outside of function (32:2)

  30 | if (_path.posix) {
  31 |   module.exports = _path;
  32 |   return;
     |   ^
  33 | }
  34 | 
  35 | // resolves . and .. elements in a path array with directory names there
    at Parser.raise (home/ubuntu/environment/node_modules/@babel/parser/lib/index.js:6420)
    at Parser.parseReturnStatement 
(home/ubuntu/environment/node_modules/@babel/parser/lib/index.js:10370)
    at Parser.parseStatementContent 
(home/ubuntu/environment/node_modules/@babel/parser/lib/index.js:10057)
    at Parser.parseStatement (home/ubuntu/environment/node_modules/@babel/parser/lib/index.js:10009)
    at Parser.parseBlockOrModuleBlockBody 
(home/ubuntu/environment/node_modules/@babel/parser/lib/index.js:10585)
    at Parser.parseBlockBody (home/ubuntu/environment/node_modules/@babel/parser/lib/index.js:10572)
    at Parser.parseBlock (home/ubuntu/environment/node_modules/@babel/parser/lib/index.js:10556)
    at Parser.parseStatementContent 
    (home/ubuntu/environment/node_modules/@babel/parser/lib/index.js:10085)
    at Parser.parseStatement (home/ubuntu/environment/node_modules/@babel/parser/lib/index.js:10009)
    at Parser.parseIfStatement 
    (home/ubuntu/environment/node_modules/@babel/parser/lib/index.js:10363)
    at Parser.parseStatementContent 
    (home/ubuntu/environment/node_modules/@babel/parser/lib/index.js:10054)
    at Parser.parseStatement (home/ubuntu/environment/node_modules/@babel/parser/lib/index.js:10009)
    at Parser.parseBlockOrModuleBlockBody 
    (home/ubuntu/environment/node_modules/@babel/parser/lib/index.js:10585)
at Parser.parseBlockBody (home/ubuntu/environment/node_modules/@babel/parser/lib/index.js:10572)
at Parser.parseTopLevel (home/ubuntu/environment/node_modules/@babel/parser/lib/index.js:9940)
at Parser.parse (home/ubuntu/environment/node_modules/@babel/parser/lib/index.js:11447)
at parse (home/ubuntu/environment/node_modules/@babel/parser/lib/index.js:11483)
at parser (home/ubuntu/environment/node_modules/@babel/core/lib/transformation/normalize-file.js:168)
at normalizeFile (home/ubuntu/environment/node_modules/@babel/core/lib/transformation/normalize-file.js:102)
at runSync (home/ubuntu/environment/node_modules/@babel/core/lib/transformation/index.js:44)
at runAsync (home/ubuntu/environment/node_modules/@babel/core/lib/transformation/index.js:35)
at process.nextTick (home/ubuntu/environment/node_modules/@babel/core/lib/transform.js:34)
at process._tickCallback (internal/process/next_tick.js:61)
at Object../node_modules/path-platform/path.js (index.js:82)
at __webpack_require__ (bootstrap:19)
at Object.<anonymous> (index.js:1)
at Object../node_modules/parents/index.js (index.js:39)
at __webpack_require__ (bootstrap:19)
at Object.<anonymous> (index.js:19)
at Object../node_modules/module-deps/index.js (index.js:623)
at __webpack_require__ (bootstrap:19)
at Object.<anonymous> (index.js:3)
at Object../node_modules/browserify/index.js (index.js:846)

这是我的 pack/application.js 文件

require("@rails/ujs").start()
require("@rails/activestorage").start()

require('jquery-ui')
require('popper')

Answer 1

我刚刚做了同样的事情，然后意识到问题是什么。 popper是 Node.js 中的某种高级浏览器测试库。 Bootstrap 取决于 popper.js ，这是浏览器的工具提示弹出库。

因此，要解决此问题，您需要:

yarn remove popper
yarn add popper.js