Output directory to write to when unspecified by targets.ĭisables minification (exact behaviour is determined by plugins). ¶ Parameters specific to the non-server commands ( watch and build) Format Sets the host to listen on, defaults to listening on all interfacesĪutomatically opens the entry in your browser, defaults to the default browser The port for the HMR and HTTP server (the default port is or 1234) parcelrc to disable HTML minification entirely (i.e., 'don't even run htmlnano' NOT 'run htmlnano with the following parameters, which might or might not entirely disable minification'). ¶ Parameters related to the dev server/watch mode ( serve and watch) Format To be error-proof and future-proof, you should use Parcel's 'optimizers' list in your. Profiles the build (a flamechart can be generated) log-level (none|error|warn|info|verbose)ĭisables reading from the filesystem cache parcel build index.htmlĪs opposed to serve and watch, build has scope hoisting enabled by default (so the other commmands implicity specify -no-scope-hoist). parcel index.html ¶ parcel build īuilds the assets once, it also enabled minification and sets the NODE_ENV=production environment variable. The watch command is similar to serve, but only with a HMR server and no HTTP (dev) server. In this case, load the file directly e.g. If you have specified multiple HTML entry points and none of them is has the output path /index.html, the dev server will respond to localhost:1234/ with a 404, since Parcel doesn't know which HTML bundle is the index. You may also pass a glob or list of globs for multiple entry points: parcel index.html Parcel follows the dependencies in each resolved entry to build your source code for one or more targets. Starts up a development server, which will automatically rebuild your app as you change files and supports hot module replacement. one or more directorises (see Specifying Entrypoints) Parcel js Tutorial Bundle Your JavaScript & Minify CSS and HTML files Dev World 10.Parcel adds cssnano to postcss in order to minify css in production build, where custom configuration can be set by creating file: module. DigitalOcean provides cloud products for every stage of your journey. Usage with existing CSS librariesįor CSS Modules to work properly with existing modules they need to specify this support in their own. Parcel CSS: A New CSS Parser, Transformer, and Minifier. Note that you still need to install postcss-modules in your project. Configuration Share Parcel configuration between projects. Reporter Receive events on build progress and completion. Compressor Compress and encode output files in multiple formats. This is because Parcel needs to have special support for CSS Modules since they export an object to be included in the JavaScript bundle as well. Minify, optimize, and transform output files. browserslistrc file: > 1%ĬSS Modules are enabled slightly differently using the a top-level modules key. Target browsers for Autoprefixer, cssnext and other tools can be specified in. If there are no options for a plugin, just set it to true instead. Plugins are specified in the plugins object as keys, and options are defined using object values. Install plugins in your app: yarn add postcss-modules autoprefixer One of the good ways to improve your website performance is by minifying your HTML, CSS, and JavaScript files. You can configure PostCSS with Parcel by creating a configuration file using one of these names. PostCSS is a tool for transforming CSS with plugins, like autoprefixer, Preset Env, and CSS Modules. In addition to plain CSS, other compile-to-CSS languages like LESS, SASS, and Stylus are also supported, and work the same way. * Reference an image file */ background: url( './images/background.png') * Import another CSS file import './other.css' All filenames should be relative to the current CSS file. Other CSS files that are are inlined into the same CSS bundle, and url() references are rewritten to their output filenames. CSS assets can be imported from a JavaScript or HTML file: import './index.css' ĬSS assets can contain dependencies referenced by syntax as well as references to images, fonts, etc.
0 Comments
Leave a Reply. |