
Research
/Security News
Contagious Interview Campaign Escalates With 67 Malicious npm Packages and New Malware Loader
North Korean threat actors deploy 67 malicious npm packages using the newly discovered XORIndex malware loader.
parcel-plugin-css-to-string
Advanced tools
Importing CSS files as a string to JavaScript.
Transform plugin for Parcel v1
Support Parcel v2: parcel-transformer-css-to-string
styles.css
.text {
color: #162D3D;
}
index.js
import styles from "./styles.css";
console.log(styles); // ".text{color:#162D3D}"
npm i --save-dev parcel-plugin-css-to-string
# or
yarn add -D parcel-plugin-css-to-string
I'm recommending to use the custom extension to your styles which will be imported as a string. It will help to escape conflicts with .css
files for global styles or css-modules. The default asset type css
.
You can add the list of your custom extensions to .parcelrc
config. Syntax highlight custom extension
For example: styles.cssx
.
.parcelrc
{
"parcel-plugin-css-to-string": {
"assetType": ["cssx"]
}
}
Web component styles via the Shadow DOM
my-app
├── src
│ ├── styles.cssx
│ └── index.js
└── .parcelrc
src/styles.cssx
.title {
text-align: center;
}
src/index.js
import styles from "./styles.cssx";
const root = document.createElement("div");
root.innerHTML = `
<style>${styles}</style>
<div>
<h1 class="title">Hello!</h1>
</div>
`;
class MyWebComponent extends HTMLElement {
connectedCallback() {
this.attachShadow({ mode: "open" }).appendChild(root);
}
}
window.customElements.define("my-web-component", MyWebComponent);
your .parcelrc
{
"parcel-plugin-css-to-string": {
"assetType": ["css"],
"minify": true,
"enableCSS": false
}
}
or package.json
{
"name": "my_package",
"description": "",
"version": "1.0.0",
"main": "index.js",
"devDependencies": {
"parcel-bundler": "^1.x",
"parcel-plugin-css-to-string": "^2.x"
},
+ "parcel-plugin-css-to-string": {
+ "assetType": ["css"],
+ "minify": true,
+ "enableCSS": false
+ }
}
Name | Type | Default | Description |
---|---|---|---|
assetType | {Array<string>} | ["css"] | List of asset types imported to javascript as a string. |
minify | {Boolean} | true | on/off minification |
enableCSS | {Boolean} | false | on/off the generation of CSS files |
You can configure minify CSS in production build, where custom configuration can be set by creating cssnano.config.js
file
cssnano.config.js
module.exports = {
preset: [
"default",
{
calc: false,
discardComments: {
removeAll: true
}
}
]
}
You can configure CSS transforming with PostCSS creating a configuration file using one of these names: .postcssrc
(JSON), .postcssrc.js
, or postcss.config.js
.
.postcssrc
config omit.parcelrc
optionminify
. If you use PostCSS config then you need addedcssnano
plugin to minify production build.
.postcssrc
{
"plugins": {
"postcss-import": {},
"autoprefixer": {},
"cssnano": {}
}
}
You can configure how the IDE will parse the files with custom extension.
Add to the root folder of your project a new folder .vscode
with file settings.json
my-app
├── .vscode
│ └── settings.json
├── src
│ ├── styles.cssx
│ └── index.js
└── .parcelrc
.vscode/settings.json
{
"files.associations": {
"*.cssx": "css",
".parcelrc": "json",
".postcssrc": "json"
}
}
FAQs
Importing CSS files as a string to JavaScript
The npm package parcel-plugin-css-to-string receives a total of 977 weekly downloads. As such, parcel-plugin-css-to-string popularity was classified as not popular.
We found that parcel-plugin-css-to-string demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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