![]() ![]() ![]() ![]() Proceed to run the following npm commands in sequence npm uninstall webpack-dev-server -save-dev npm install webpack-dev-middleware webpack-hot-middleware express regenerator-runtime rimraf cross-env openurl -save-dev Step 2. The greatest strength of Node.js is its scalability. Node.js comes complete with an integrated web server, making it easy to deploy your MongoDB database and application to the cloud. Express is purpose-built to work on top of Node.js, and AngularJS connects seamlessly to Node.js for fast data serving. With reference to Cesium’s Webpack boilerplate, Step 1. Node.js is the backbone of the MEAN stack. Configure Hot-Reload in Webpack Boilerplate In order to overwrite the rigid settings of Webpack-Dev-Server, the next section shall demonstrate how Webpack-Dev-Server can be replaced by both Webpack-Hot-Middleware and Webpack-Dev-Middleware instead to enable the same hot-reload functionality with the additional benefit of allowing greater room for customisations. While the above setup offers the advantage of convenience, this however is only intended for Webpack applications with basic functionalities and little need for customisations. The app can be run via the command: npm start In the event that a full refresh had occurred instead, the map above would have been restored to its initial position and the user would need to pan the map to the required position again.įortunately, thanks to the latest tweak made to Webpack-Dev-Server, this can be quickly configured via the file by setting the parameter mode to development as with the demo above.Īfter including the following script in package.json: "start": "node_modules/.bin/webpack serve -config -open" Alters the application’s current state minimally as shown in the example above.Removes the need to actively select the “Refresh” button.Screen Capture by Author | Illustrating corresponding changes made to the map application on the left upon modification of the ‘main.css’ file | Height of layout is reduced to half when the `height` property in main.css file is changed to `50vh` For example, upon running Cesium with Webpack configured with Webpack-Dev-Server, the map display present in the web layout (on the left) are reflected when changes to its stylesheet in the CSS file (on the right) are made simultaneously: (Created by the Cesium team)īasically, the feature ‘hot-reload’ is intended to make web development a seamless process by changing the web layout on the fly without actively selecting the refresh button to re-render the webpage. ( FYI: Latest version of Webpack bundler is v5 as of current.) Explaining and Illustrating Hot-reload Use-Case Demo: Cesium, a JS Utility to render 3D Web Contentįor this article’s demo, the starter Webpack boilerplate used shall be retrieved from Cesium with Webpack, a minimal Webpack template configured with Webpack-Dev-Server. For Node.js web developers who are users of the bundler tool Webpack, many would have likely noticed the latest feature present in its companion module, Webpack-Dev-Server (v4 as of this article’s posting) - that being its in-built ‘hot-reload’ function. ![]()
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