@alt-javascript/lang

Language feature detection utilities for ECMAScript 6 and beyond.

1.0.4

latest

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npm

Version published: 3 years ago

Weekly downloads: 0

Maintainers: 1

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Created: 3 years ago

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Language feature detection utilities for ECMAScript 6 and beyond.

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Introduction

Language feature detection utilities for ECMAScript 6 and beyond, currently bundling the es-feature-detection and 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:

   <script src="https://cdn.jsdelivr.net/npm/@alt-javascript/lang/dist/alt-javascript-lang-iife.js"></script>

   <script>
       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"
       }
   </script>

License

May be freely distributed under the MIT license.

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Package last updated on 18 Mar 2022

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