Now let's make sure we have something to debug, so let's create an error in our print. Be sure to check them out so you can configure them to your needs.įor this guide, let's use the inline-source-map option, which is good for illustrative purposes (though not for production): There are a lot of different options available when it comes to source maps. I think I have the files I need: C:\Projects\testapp\config\webpacker.yml C:\Projects\testapp\config\webpack\configuration.js C:\Projects\testapp\config\webpack\development.js.
As far as I can tell, I should just be able to run webpack-dev-server 'out of the box' at this point. If an error originates from b.js, the source map will tell you exactly that. rails new testapp -webpackreact That all runs fine. It should be easy to use but, as youll see, if you have a more complex setup or use Docker, it might require extra messing around.
HOW TO RUN WEBPACK DEV SERVER CODE
In order to make it easier to track down errors and warnings, JavaScript offers source maps, which map your compiled code back to your original source code. This is great, but theres another way to run Webpack while developing. This isn't always helpful as you probably want to know exactly which source file the error came from. For example, if you bundle three source files ( a.js, b.js, and c.js) into one bundle ( bundle.js) and one of the source files contains an error, the stack trace will point to bundle.js. When webpack bundles your source code, it can become difficult to track down errors and warnings to their original location. const path = require('path') Ĭonst HtmlWebpackPlugin = require('html-webpack-plugin') Well take a look at an example that combines webpack-dev-middleware with an express server.
This is used in webpack-dev-server internally, however its available as a separate package to allow more custom setups if desired.
Let's start by setting mode to 'development' and title to 'Development'. webpack-dev-middleware is a wrapper that will emit files processed by webpack to a server. The tools in this guide are only meant for development, please avoid using them in production! Before we continue, let's look into setting up a development environment to make our lives a little easier. If you've been following the guides, you should have a solid understanding of some of the webpack basics. This guide extends on code examples found in the Output Management guide.
0 kommentar(er)
