Best of JS • Modernizr

Modernizr is a JavaScript library that detects HTML5 and CSS3 features in the user’s browser.

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Our Website is outdated and broken, please DO NOT use it (https://modernizr.com) but rather build your modernizr version from npm.
Documentation
Integration tests
Unit tests

Modernizr tests which native CSS3 and HTML5 features are available in the current UA and makes the results available to you in two ways: as properties on a global Modernizr object, and as classes on the <html> element. This information allows you to progressively enhance your pages with a granular level of control over the experience.

Breaking changes with v4

Dropped support for node versions <= 10, please upgrade to at least version 12
Following tests got renamed:
- class to es6class to keep in line with the rest of the es-tests
Following tests got moved in subdirectories:
- cookies, indexeddb, indexedblob, quota-management-api, userdata moved into the storage subdirectory
- audio moved into the audio subdirectory
- battery moved into the battery subdirectory
- canvas, canvastext moved into the canvas subdirectory
- customevent, eventlistener, forcetouch, hashchange, pointerevents, proximity moved into the event subdirectory
- exiforientation moved into the image subdirectory
- capture, fileinput, fileinputdirectory, formatattribute, input, inputnumber-l10n, inputsearchevent, inputtypes, placeholder, requestautocomplete, validation moved into the input subdirectory
- svg moved into the svg subdirectory
- webgl moved into the webgl subdirectory
Following tests got removed:
- touchevents: discussion
- unicode: discussion
- templatestrings: duplicate of the es6 detect stringtemplate
- contains: duplicate of the es6 detect es6string
- datalistelem: A dupe of Modernizr.input.list

New Asynchronous Event Listeners

Often times people want to know when an asynchronous test is done so they can allow their application to react to it. In the past, you've had to rely on watching properties or <html> classes. Only events on asynchronous tests are supported. Synchronous tests should be handled synchronously to improve speed and to maintain consistency.

The new API looks like this:

// Listen to a test, give it a callback
Modernizr.on("testname", function (result) {
  if (result) {
    console.log("The test passed!");
  } else {
    console.log("The test failed!");
  }
});

We guarantee that we'll only invoke your function once (per time that you call on). We are currently not exposing a method for exposing the trigger functionality. Instead, if you'd like to have control over async tests, use the src/addTest feature, and any test that you set will automatically expose and trigger the on functionality.

Getting Started

Clone or download the repository
Install project dependencies with npm install

Building Modernizr

From javascript

Modernizr can be used programmatically via npm:

var modernizr = require("modernizr");

A build method is exposed for generating custom Modernizr builds. Example:

var modernizr = require("modernizr");

modernizr.build({}, function (result) {
  console.log(result); // the build
});

The first parameter takes a JSON object of options and feature-detects to include. See lib/config-all.json for all available options.

The second parameter is a function invoked on task completion.

From the command-line

We also provide a command line interface for building modernizr. To see all available options run:

./bin/modernizr

Or to generate everything in 'config-all.json' run this with npm:

npm start
//outputs to ./dist/modernizr-build.js

Testing Modernizr

To execute the tests using mocha-headless-chrome on the console run:

npm test

You can also run tests in your browser of choice with this command:

npm run serve-gh-pages

and navigate to these two URLs:

http://localhost:8080/test/unit.html
http://localhost:8080/test/integration.html

Integrating Modernizr with Build Tools

This section provides guidance on how to integrate Modernizr with various build tools and frameworks, making it easier to use in your projects.

1. Integrating with Webpack

To integrate Modernizr with Webpack, follow these steps:

Install Modernizr:
```
npm install modernizr --save
```

Create a Modernizr Configuration File: Create a file named modernizr-config.js in your project root:

module.exports = {
  "feature-detects": [
    "test/feature1",
    "test/feature2",
    // Add more feature detects as needed
  ]
};

Update Webpack Configuration: Modify your Webpack configuration file (e.g., webpack.config.js) to include the Modernizr plugin:

const ModernizrWebpackPlugin = require('modernizr-webpack-plugin');

module.exports = {
  // Other configurations...
  plugins: [
    new ModernizrWebpackPlugin({
      "feature-detects": [
        "test/feature1",
        "test/feature2"
      ]
    })
  ]
};

Build Your Project: Run your Webpack build process:
```
npm run build
```

2. Integrating with Gulp

If you are using Gulp, you can integrate Modernizr as follows:

Install Modernizr:
```
npm install modernizr --save-dev
```

Create a Gulp Task: In your gulpfile.js, add a task to build Modernizr:

const gulp = require('gulp');
const modernizr = require('modernizr');

gulp.task('modernizr', function() {
  return modernizr.build({
    "feature-detects": [
      "test/feature1",
      "test/feature2"
    ]
  }).pipe(gulp.dest('dist/'));
});

Run the Gulp Task: Execute the task to generate the Modernizr build:
```
gulp modernizr
```

3. Integrating with Parcel

For projects using Parcel, you can integrate Modernizr as follows:

Install Modernizr:
```
npm install modernizr --save
```

Create a Modernizr Configuration File: Similar to the Webpack setup, create a modernizr-config.js file:

module.exports = {
  "feature-detects": [
    "test/feature1",
    "test/feature2"
  ]
};

Update Parcel Configuration: You can use a plugin like parcel-plugin-modernizr to integrate Modernizr:
```
npm install parcel-plugin-modernizr --save-dev
```
Build Your Project: Run Parcel to build your project:
```
parcel build index.html
```

Conclusion

Integrating Modernizr with your build tools can enhance your web applications by allowing you to detect and respond to the capabilities of the user's browser. Follow the steps above to set up Modernizr with your preferred build tool.

For more information, refer to the Modernizr documentation.

Code of Conduct

This project adheres to the Open Code of Conduct. By participating, you are expected to honor this code.

License

MIT License