https://github.com/alt-javascript/lang

Feature detection utilities for ECMAScript 6 and beyond
https://github.com/alt-javascript/lang

Last synced: 10 months ago
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Feature detection utilities for ECMAScript 6 and beyond

• Host: GitHub
• URL: https://github.com/alt-javascript/lang
• Owner: alt-javascript
• License: mit
• Created: 2022-03-18T01:50:49.000Z (almost 4 years ago)
• Default Branch: main
• Last Pushed: 2022-03-18T08:24:26.000Z (almost 4 years ago)
• Last Synced: 2025-02-17T03:47:21.716Z (11 months ago)
• Language: JavaScript
• Homepage:
• Size: 188 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: History.md
  • License: LICENSE

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README

          
Language feature detection utilities for ECMAScript 6 and beyond.

===================================

[![NPM](https://nodei.co/npm/@alt-javascript/lang.svg?downloads=true&downloadRank=true)](https://nodei.co/npm/@alt-javascript/lang/)




![Language Badge](https://img.shields.io/github/languages/top/alt-javascript/lang)

![Package Badge](https://img.shields.io/npm/v/@alt-javascript/lang) 


[release notes](https://github.com/alt-javascript/lang/blob/main/History.md)

Introduction

--------------------------------

Language feature detection utilities for ECMAScript 6 and beyond, currently bundling the [es-feature-detection](https://www.npmjs.com/package/es-feature-detection) and

[feature-detect-es6](https://www.npmjs.com/package/feature-detect-es6) npm packages.

Usage

-------------------------

The module can be used directly in the browser, as an IIFE (Immediately Invoked Function Expression),

using the global variable `lang` as follows:

```html

   

   

       if (!lang.allOk(lang.es2020)){

           console.error('We\'re sorry but the site requires JavaScript 11 (ECMAScript 2020). Please upgrade your browser to continue.')

           document.getElementById("require_es2020").style.display = "block"

       }

   

```

License

-----------------------------

May be freely distributed under the [MIT license](https://raw.githubusercontent.com/alt-javascript/lang/main/LICENSE).

Copyright (c) 2021-2022 Craig Parravicini