npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

vite-plugin-browserslist-useragent

v0.4.2

Published

A utility vite plugin to compile browserslist query to a RegExp to test browser useragent.

Downloads

4,729

Readme

vite-plugin-browserslist-useragent

npm version npm downloads gitmoji

A vite plugin wrapping browserslist-useragent-regexp which provides utility RegExps compiled by browserslist query to test browser useragent.

Simplest example: you can detect supported browsers on client-side.

  1. Create .browserslistrc config, for example like this:
last 2 versions
not dead
  1. Add plugin to vite.config.*:
// vite.config.ts
import SupportedBrowsers from 'vite-plugin-browserslist-useragent'
export default defineConfig({
  plugins: [SupportedBrowsers(/* options */)],
})
  1. Import RegExp from virtual module:
import { browsersRegex } from 'virtual:supported-browsers'

if (browsersRegex.test(navigator.userAgent)) {
  alert('Your browser is supported.')
}

Auto-generated virtual:supported-browsers:

export const browsersRegex =
  /Edge?\/(10[5-9]|1[1-9]\d|[2-9]\d\d|\d{4,})(\.\d+|)(\.\d+|)|Firefox\/(10[4-9]|1[1-9]\d|[2-9]\d\d|\d{4,})\.\d+(\.\d+|)|Chrom(ium|e)\/(10[5-9]|1[1-9]\d|[2-9]\d\d|\d{4,})\.\d+(\.\d+|)|Maci.* Version\/(15\.([6-9]|\d{2,})|(1[6-9]|[2-9]\d|\d{3,})\.\d+)([,.]\d+|)( Mobile\/\w+|) Safari\/|Chrome.+OPR\/(9\d|\d{3,})\.\d+\.\d+|(CPU[ +]OS|iPhone[ +]OS|CPU[ +]iPhone|CPU IPhone OS|CPU iPad OS)[ +]+(15[._]([6-9]|\d{2,})|(1[6-9]|[2-9]\d|\d{3,})[._]\d+)([._]\d+|)|Opera Mini|Android:?[ /\-](10[6-9]|1[1-9]\d|[2-9]\d{2}|\d{4,})(\.\d+|)(\.\d+|)|Mobile Safari.+OPR\/(6[4-9]|[7-9]\d|\d{3,})\.\d+\.\d+|Android.+Firefox\/(10[5-9]|1[1-9]\d|[2-9]\d\d|\d{4,})\.\d+(\.\d+|)|Android.+Chrom(ium|e)\/(10[6-9]|1[1-9]\d|[2-9]\d\d|\d{4,})\.\d+(\.\d+|)|Android.+(UC? ?Browser|UCWEB|U3)[ /]?(13\.([4-9]|\d{2,})|(1[4-9]|[2-9]\d|\d{3,})\.\d+)\.\d+|SamsungBrowser\/(1[7-9]|[2-9]\d|\d{3,})\.\d+|Android.+MQQBrowser\/(13(\.([1-9]|\d{2,})|)|(1[4-9]|[2-9]\d|\d{3,})(\.\d+|))(\.\d+|)|K[Aa][Ii]OS\/(2\.([5-9]|\d{2,})|([3-9]|\d{2,})\.\d+)(\.\d+|)/
export const browsersRegexes = [
  {
    family: 'edge',
    sourceRegex: {},
    sourceRegexString: 'Edge?\\/(\\d+)(\\.(\\d+)|)(\\.(\\d+)|)',
    regex: {},
    requestVersions: [
      [105, 0, 0],
      [106, 0, 0],
    ],
    requestVersionsStrings: ['105.0.0', '106.0.0'],
    regexString: 'Edge?\\/(105|106)(\\.0|)(\\.\\d+|)',
  },
  /* ... */
]

Install

pnpm add -D vite-plugin-browserslist-useragent
# or
npm i -D vite-plugin-browserslist-useragent
# or
yarn add -D vite-plugin-browserslist-useragent

Why?

https://github.com/browserslist/browserslist-useragent-regexp#why

Why wrap browserslist-useragent-regexp with vite plugin?

Let Vite transform and bundle for you and no need to run CLI every time you change browserslist.

Virtual Module

Virtual module virtual:supported-browsers exposes two variables returned by the following two methods of browserslist-useragent-regexp whose arguments are passed from plugin's options:

getUserAgentRegex(options)=> browsersRegexp: RegExp

Compile browserslist query to one regex.

getUserAgentRegexs(options)=> browsersRegexps: BrowserVersionedRegex[]

Compile browserslist query to regexes for each browser.

Options

| Option | Type | Default | Description | | -------------------- | -------------------- | ------- | -------------------------------------------------------------------------------------------------------------------------------------------------------- | | browsers | string \| string[] | — | Manually provide a browserslist query (or an array of queries). Specifying this overrides the browserslist configuration specified in your project. | | env | string | — | When multiple browserslist environments are specified, pick the config belonging to this environment. | | ignorePatch | boolean | true | Ignore differences in patch browser numbers. | | ignoreMinor | boolean | false | Ignore differences in minor browser versions. | | allowHigherVersions | boolean | false | For all the browsers in the browserslist query, return a match if the useragent version is equal to or higher than the one specified in browserslist. | | allowZeroSubversions | boolean | false | Ignore match of patch or patch and minor, if they are 0. |

RegExp info object

| Property | Type | Description | | --------------- | ---------------------------------- | -------------------------------------------------- | | family | string | Browser family. | | requestVersions | [number, number, number][] | Versions provided by browserslist. | | regex | RegExp | Regex to match useragent with family and versions. | | sourceRegex | RegExp | Original useragent regex, without versions. | | version | [number, number, number] \| null | Useragent version of regex. | | minVersion | [number, number, number] \| null | Useragent min version of regex. | | maxVersion | [number, number, number] \| null | Useragent max version of regex. |

Client Types

If you want type definition of virtual:supported-browsers, add vite-plugin-browserslist-useragent/client to compilerOptions.types of your tsconfig:

{
  "compilerOptions": {
    "types": ["vite-plugin-browserslist-useragent/client"]
  }
}

License

MIT License © 2022 Yue JIN