![]() See the full documentation of webpack-dev-server Node.js API. Now let's update the index.js file so that when a change inside print.js is detected we tell webpack to accept the updated module.Ĭonst element = document.createElement('div') Ĭonst btn = document.createElement('button') Įlement.innerHTML = _.join(, ' ') ītn.innerHTML = 'Click me and check the console!' You can use the CLI to modify the webpack-dev-server configuration with the following command: webpack serve -hot-only. + new webpack.HotModuleReplacementPlugin(), + client: 'webpack-dev-server/client/index.js?hot=true&live-reload=true', + // Dev server client for web socket transport, hot and live reload logic + // Runtime code for hot module replacement You can also provide manual entry points for HMR: const path = require('path') Ĭonst HtmlWebpackPlugin = require('html-webpack-plugin') If you took the route of using webpack-dev-middleware instead of webpack-dev-server, please use the webpack-hot-middleware package to enable HMR on your custom server or application. Since webpack-dev-server v4.0.0, Hot Module Replacement is enabled by default. We'll also remove the entry point for print.js as it will now be consumed by the index.js module. All we need to do is update our webpack-dev-server configuration, and use webpack's built-in HMR plugin. See the building for production guide for more information. HMR is not intended for use in production, meaning it should only be used in development. This page focuses on implementation while the concepts page gives more details on how it works and why it's useful. ![]() It allows all kinds of modules to be updated at runtime without the need for a full refresh. Hot Module Replacement (or HMR) is one of the most useful features offered by webpack. You can call WebPack from Gulp, but you should completely migrate from Gulp to WebPack, why maintaining two different technologies?īe sure to read about Gulp quite often, this world is changing quickly and if you miss something, you will be doing it wrong in a short period of time.This guide extends on code examples found in the Development guide. If you are an ES6 lover (you should), I suggest you to read about WebPack. var gulp = require('gulp'), cssnano = require('gulp-cssnano'), rename = require('gulp-rename'), sass = require('gulp-sass'), scsslint = require('gulp-scss-lint') var paths = ) Īre you a two monitor user? This will increase your productivity quite a lot. ![]() So, you are working with Sass and you are bored of running the same task over and over. You are prepared right now, what about starting with the most common and repetitive tasks? SCSS to CSS transformation Remember that this will add that dependency to your package.json file. Now, in every project, you must install the gulp dependency as follows: npm install -save-dev gulp This must to be done once in every computer, you don’t need to run it again and again: npm install -global gulp-cli You need to install two different elements to work with Gulp. This story will try to explain a basic (personal) way of working with Gulp. Nowadays, it’s very difficult to see a web project without a task runner that automates repetitive tasks such as bundling and minifying stylesheets, Less/Sass to CSS compilation, etc.
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