Add js-routes to use Route helpers in JavaScript

config/webpack/environment.js

@@ -7,6 +7,7 @@ github.com/rails/webpacker/blob/master/docs/webpack.md
 const { environment } = require('@rails/webpacker')
 const { merge } = require('webpack-merge')
 const webpack = require('webpack')
+const erb = require('./loaders/erb')
 
 // Add an additional plugin of your choosing : ProvidePlugin
 environment.plugins.prepend('Provide', new webpack.ProvidePlugin({
@@ -24,6 +25,8 @@ environment.plugins.prepend('Provide', new webpack.ProvidePlugin({
     })
 )
 
+environment.loaders.append('erb', erb)
+
 const envConfig = module.exports = environment
 const aliasConfig = module.exports = {
     resolve: {

config/webpack/loaders/erb.js

@@ -0,0 +1,16 @@
+module.exports = {
+    test: /\.erb$/,
+    enforce: "pre",
+    exclude: /node_modules/,
+
+    use: [{
+        loader: "rails-erb-loader",
+        options: {
+            runner: (/^win/.test(process.platform) ? "ruby " : "") + "bin/rails runner",
+            env: {
+                ...process.env,
+                DISABLE_SPRING: 1,
+            },
+        },
+    }],
+}