我生成了一个新的rails应用:
rails new titi --webpack=vue
并且想使用jQuery(或其他libs,如popper,vue-resource ......)。
我尝试yarn add jquery
这很好,但我无法在我的JavaScript代码中访问jQuery。
在以前的Webpacker gem中,有更多的conf,我不得不在shared.js
中写这个:
module.exports = {
...
plugins: [
...
new webpack.ProvidePlugin({
$: 'jquery',
jQuery: 'jquery',
]
...
resolve: {
extensions: settings.extensions,
modules: [
resolve(settings.source_path),
'node_modules'
],
alias: {
jquery: "jquery/src/jquery",
vue: "vue/dist/vue.js",
vue_resource: "vue-resource/dist/vue-resource",
}
}
在当前的Webpacker版本中包含库的最简洁方法是什么? config/webpacker.yml
中的某些内容?
答案 0 :(得分:16)
更新 Webpacker 3.5.0 和 bootstrap@4.1.1
安装JQuery不需要 Popper.js
和bootstrap@4.0.0
。但是,Bootstrap 4需要JQuery和Popper.js,我认为这是在原始示例中显示它们的重点。另外,我从我的例子中省略了Vue,因为有很多关于如何添加Vue连接的文档。
为了让一切顺利,我通过纱线安装了webpack-merge
,popper.js
,jquery
,jquery-ujs
和bootstrap@4.1.1
。
安装完成后,我可以使用以下代码更新./config/webpack/environment.js
:
/*
./config/webpack/environment.js
Info for this file can be found
github.com/rails/webpacker/blob/master/docs/webpack.md
*/
const { environment } = require('@rails/webpacker')
const merge = require('webpack-merge')
const webpack = require('webpack')
// Add an additional plugin of your choosing : ProvidePlugin
environment.plugins.prepend('Provide', new webpack.ProvidePlugin({
$: 'jquery',
JQuery: 'jquery',
jquery: 'jquery',
'window.Tether': "tether",
Popper: ['popper.js', 'default'], // for Bootstrap 4
})
)
const envConfig = module.exports = environment
const aliasConfig = module.exports = {
resolve: {
alias: {
jquery: 'jquery/src/jquery'
}
}
}
module.exports = merge(envConfig.toWebpackConfig(), aliasConfig)
现在envConfig.toWebpackConfig()
中的最后一个语句中使用了environment.js
,我需要将development.js
,production.js
,test.js
更改为以下内容:
const environment = require('./environment')
module.exports = environment
然后在./app/javascript/application.js
我添加了以下内容:
// ./app/javascript/application.js
/* eslint no-console:0 */
// This file is automatically compiled by Webpack, along with any other files
// present in this directory. You're encouraged to place your actual application logic in
// a relevant structure within app/javascript and only use these pack files to reference
// that code so it'll be compiled.
//
// To reference this file, add <%= javascript_pack_tag 'application' %> to the appropriate
// layout file, like app/views/layouts/application.html.erb
console.log('Hello World from Webpacker')
// JS libraries
import "jquery"
import "jquery-ujs"
import "bootstrap"
为了确保JQuery没有通过资产管道加载,我删除了./app/assets/javascripts/application.js
中的Rails资产连接:
// require rails-ujs
// require_tree .
然后我将这两行添加到header
中的./app/views/layouts/application.html.haml
部分以显示Webpack内容:
= stylesheet_pack_tag 'application'
= javascript_pack_tag 'application'
在创建static_pages
控制器和static_pages#index
视图后,启动Rails服务器(rails s
)后,我可以访问浏览器的JS控制台并运行{ {1}}看看JQuery是否正在加载。一切都按预期加载。
可以在此处找到文档:https://github.com/rails/webpacker/blob/master/docs/webpack.md
答案 1 :(得分:13)
感谢。对于gem Webpacker 2来说这很好,但新版本的Gem有一个新的文件组织,需要较少的配置。
对于Webpack 3,shared.js
似乎不是强制性的。相反,我在config/webpack/environment.js
中编写了这样的配置:
const { environment } = require('@rails/webpacker')
const webpack = require('webpack')
// Add an ProvidePlugin
environment.plugins.set('Provide', new webpack.ProvidePlugin({
$: 'jquery',
jQuery: 'jquery',
jquery: 'jquery',
'window.Tether': "tether",
Popper: ['popper.js', 'default'],
ActionCable: 'actioncable',
Vue: 'vue',
VueResource: 'vue-resource',
})
)
const config = environment.toWebpackConfig()
config.resolve.alias = {
jquery: "jquery/src/jquery",
vue: "vue/dist/vue.js",
vue_resource: "vue-resource/dist/vue-resource",
}
// export the updated config
module.exports = environment
答案 2 :(得分:0)
@sknight的答案很好。但如果你还没有包含它,我会添加一些缺失的配置。
application.css
内创建app/javascript/packs/application.css
文件,否则您将收到Webpacker can't find application.css in ~/public/packs/manifest.json. Possible causes:
import "./application.css";
app/javascript/packs/application.js
import "bootstrap/dist/css/bootstrap.css";
中添加app/javascript/packs/application.js
以使用模板中的引导类