mirror of
https://github.com/lancedikson/bowser
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178 lines
7.1 KiB
Markdown
178 lines
7.1 KiB
Markdown
## Bowser
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A small, fast and rich-API browser/platform/engine detector for both browser and node.
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- **Small.** Use plain ES5-version which is ~4.8kB gzipped.
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- **Optimized.** Use only those parsers you need — it doesn't do useless work.
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- **Multi-platform.** It's browser- and node-ready, so you can use it in any environment.
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Don't hesitate to support the project on Github or [OpenCollective](https://opencollective.com/bowser) if you like it ❤️ Also, contributors are always welcome!
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[](https://opencollective.com/bowser) [](https://travis-ci.org/lancedikson/bowser/) [](https://greenkeeper.io/) [](https://coveralls.io/github/lancedikson/bowser?branch=master) 
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# Contents
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- [Overview](#overview)
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- [Use cases](#use-cases)
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# Overview
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The library is made to help to detect what browser your user has and gives you a convenient API to filter the users somehow depending on their browsers. Check it out on this page: https://bowser-js.github.io/bowser-online/.
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### ⚠️ Version 2.0 breaking changes ⚠️
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Version 2.0 has drastically changed the API. All available methods are on the [docs page](https://bowser-js.github.io/bowser/docs/).
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_For legacy code, check out the [1.x](https://github.com/lancedikson/bowser/tree/v1.x) branch and install it through `npm install bowser@1.9.4`._
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# Use cases
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First of all, require the library. This is a UMD Module, so it will work for AMD, TypeScript, ES6, and CommonJS module systems.
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```javascript
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const Bowser = require("bowser"); // CommonJS
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import * as Bowser from "bowser"; // TypeScript
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import Bowser from "bowser"; // ES6 (and TypeScript with --esModuleInterop enabled)
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```
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By default, the exported version is the *ES5 transpiled version*, which **do not** include any polyfills.
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In case you don't use your own `babel-polyfill` you may need to have pre-built bundle with all needed polyfills.
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So, for you it's suitable to require bowser like this: `require('bowser/bundled')`.
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As the result, you get a ES5 version of bowser with `babel-polyfill` bundled together.
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You may need to use the source files, so they will be available in the package as well.
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## Browser props detection
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Often we need to pick users' browser properties such as the name, the version, the rendering engine and so on. Here is an example how to do it with Bowser:
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```javascript
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const browser = Bowser.getParser(window.navigator.userAgent);
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console.log(`The current browser name is "${browser.getBrowserName()}"`);
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// The current browser name is "Internet Explorer"
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```
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or
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```javascript
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const browser = Bowser.getParser(window.navigator.userAgent);
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console.log(browser.getBrowser());
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// outputs
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{
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name: "Internet Explorer"
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version: "11.0"
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}
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```
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or
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```javascript
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console.log(Bowser.parse(window.navigator.userAgent));
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// outputs
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{
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browser: {
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name: "Internet Explorer"
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version: "11.0"
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},
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os: {
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name: "Windows"
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version: "NT 6.3"
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versionName: "8.1"
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},
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platform: {
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type: "desktop"
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},
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engine: {
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name: "Trident"
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version: "7.0"
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}
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}
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```
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## Filtering browsers
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You could want to filter some particular browsers to provide any special support for them or make any workarounds.
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It could look like this:
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```javascript
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const browser = Bowser.getParser(window.navigator.userAgent);
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const isValidBrowser = browser.satisfies({
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// declare browsers per OS
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windows: {
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"internet explorer": ">10",
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},
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macos: {
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safari: ">10.1"
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},
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// per platform (mobile, desktop or tablet)
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mobile: {
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safari: '>=9',
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'android browser': '>3.10'
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},
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// or in general
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chrome: "~20.1.1432",
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firefox: ">31",
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opera: ">=22",
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// also supports equality operator
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chrome: "=20.1.1432", // will match particular build only
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// and loose-equality operator
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chrome: "~20", // will match any 20.* sub-version
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chrome: "~20.1" // will match any 20.1.* sub-version (20.1.19 as well as 20.1.12.42-alpha.1)
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});
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```
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Settings for any particular OS or platform has more priority and redefines settings of standalone browsers.
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Thus, you can define OS or platform specific rules and they will have more priority in the end.
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More of API and possibilities you will find in the `docs` folder.
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### Browser names for `.satisfies()`
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By default you are supposed to use the full browser name for `.satisfies`.
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But, there's a short way to define a browser using short aliases. The full
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list of aliases can be found in [the file](src/constants.js).
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## Similar Projects
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* [Kong](https://github.com/BigBadBleuCheese/Kong) - A C# port of Bowser.
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## Contributors
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### Code Contributors
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This project exists thanks to all the people who contribute. [[Contribute](.github/CONTRIBUTING.md)].
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<a href="https://github.com/lancedikson/bowser/graphs/contributors"><img src="https://opencollective.com/bowser/contributors.svg?width=890&button=false" /></a>
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### Financial Contributors
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Become a financial contributor and help us sustain our community. [[Contribute](https://opencollective.com/bowser/contribute)]
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#### Individuals
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<a href="https://opencollective.com/bowser"><img src="https://opencollective.com/bowser/individuals.svg?width=890"></a>
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#### Organizations
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Support this project with your organization. Your logo will show up here with a link to your website. [[Contribute](https://opencollective.com/bowser/contribute)]
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<a href="https://opencollective.com/bowser/organization/0/website"><img src="https://opencollective.com/bowser/organization/0/avatar.svg"></a>
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<a href="https://opencollective.com/bowser/organization/1/website"><img src="https://opencollective.com/bowser/organization/1/avatar.svg"></a>
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<a href="https://opencollective.com/bowser/organization/2/website"><img src="https://opencollective.com/bowser/organization/2/avatar.svg"></a>
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<a href="https://opencollective.com/bowser/organization/3/website"><img src="https://opencollective.com/bowser/organization/3/avatar.svg"></a>
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<a href="https://opencollective.com/bowser/organization/4/website"><img src="https://opencollective.com/bowser/organization/4/avatar.svg"></a>
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<a href="https://opencollective.com/bowser/organization/5/website"><img src="https://opencollective.com/bowser/organization/5/avatar.svg"></a>
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<a href="https://opencollective.com/bowser/organization/6/website"><img src="https://opencollective.com/bowser/organization/6/avatar.svg"></a>
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<a href="https://opencollective.com/bowser/organization/7/website"><img src="https://opencollective.com/bowser/organization/7/avatar.svg"></a>
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<a href="https://opencollective.com/bowser/organization/8/website"><img src="https://opencollective.com/bowser/organization/8/avatar.svg"></a>
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<a href="https://opencollective.com/bowser/organization/9/website"><img src="https://opencollective.com/bowser/organization/9/avatar.svg"></a>
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## License
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Licensed as MIT. All rights not explicitly granted in the MIT license are reserved. See the included LICENSE file for more details.
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