Lasso.js plugin for custom builds of Modernizr
npm install lasso-modernizr --save
The lasso-modernizr
plugin will then need to be registered (and configured) as shown below:
require('lasso').configure({ ... plugins: [ 'lasso-modernizr', ... ] });
Include the generated file name into the dependencies of the page where you intend to use Modernizr.
browser.json
{ "dependencies": [ { "type": "modernizr" }, ] }
You can inline Modernizr into HTML. That's recommended when you want to reduce the amount of rerenders in cases when you use:
setClasses
- set classes on HTML element for conditional CSS behaviourhtml5printshiv
- fix HTML5 elements for IE8 and below{ "dependencies": [ { "type": "modernizr", "inline": true }, ] }
You should pass Modernizr configuration options through the config
object directly to Modernizr. For example:
require('lasso').configure({ ... plugins: [ { plugin: 'lasso-modernizr', config: { crawl: false, tests: [ 'csstransitions', 'flexbox' ] } } ] });
Now just use it like Modernizr.flexbox === true
Default options:
... config: { cache: true, devFile: false, dest: false, options: [], uglify: false, tests: [], excludeTests: [], crawl: true, useBuffers: false, files: { src: [ '*[^(g|G)runt(file)?].{js,css,scss}', '**[^node_modules]/**/*.{js,css,scss}', '!lib/**/*' ] }, customTests: [] }
Crawl
and files
options mean that these files will be automtically parsed for Modernizr usage.
For custom tests use addTest
option:
... config: { ... options: [ 'addTest' ] , customTests: [ './util/modernizr-tests.js' ] }
modernizr-tests.js
/* global define */ define(['Modernizr'], function(Modernizr) { 'use strict'; Modernizr.addTest('ios', function(){ return Boolean(navigator.userAgent.match(/(iPad|iPhone|iPod)/g)) }); });
Now you can use it like Modernizr.ios === true
Another way to run custom tests is to add require-run: ./path/to/modernizr-tests
to browser.json
Other Modernizr options description can be found here.
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