Browser Ecmascript Support

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ECMAScript 6 compatibility table - GitHub Pages

    https://kangax.github.io/compat-table/es6/
    ECMAScript 5 6 2016+ next intl non-standard compatibility table by kangax & webbedspace & zloirock Sort by Engine types Features Flagged features Show obsolete platforms Show unstable platforms

JavaScript Versions

    https://www.w3schools.com/Js/js_versions.asp
    IE 4 was the first browser to support ECMAScript 1 (1997). IE 5 was the first browser to support ECMAScript 2 (1999). IE 5.5 was the first browser to support ECMAScript 3 (2000).

ECMAScript 6 - ECMAScript 2015

    https://www.w3schools.com/Js/js_es6.asp
    Browser Support for ES6 (ECMAScript 2015) Safari 10 and Edge 14 were the first browsers to fully support ES6:

javascript - ES6 (ECMAScript 2015) support as of 2018 ...

    https://stackoverflow.com/questions/48361675/es6-ecmascript-2015-support-as-of-2018
    Looking at the ES6 (ECMAScript 2015) support by browsers, I can see that the supporting level is much less than that of Node.js, so the question is, Many different browsers and many different Javascript engines in them, each with their own level of ES6 support.

ECMAScript 2015 support in Mozilla - JavaScript MDN

    https://developer.mozilla.org/en-US/docs/Web/JavaScript/New_in_JavaScript/ECMAScript_2015_support_in_Mozilla
    Mar 24, 2019 · ECMAScript 2015 is the sixth edition of the ECMAScript Language Specification standard. It defines the standard for the JavaScript implementation in SpiderMonkey, the engine used in Firefox and other Mozilla applications.

ECMAScript Support Matrix - PointedEars

    http://pointedears.de/scripts/test/es-matrix/
    This overview – the ECMAScript Support Matrix – began as a comparison of different “JavaScript” features and, as time passed and understanding grew, evolved into a comparison between the major ECMAScript implementations, detailing the differences, the quirks and the bugs. It has been serving its author (and its dedicated readers) for years in writing client-side scripts that work cross-browser, and …

ECMAScript Next compatibility table

    https://kangax.github.io/compat-table/esnext/
    ECMAScript 5 6 2016+ next intl non-standard compatibility table by kangax & webbedspace & zloirock This table shows proposals which have not yet been included in the current ECMAScript standard, but are at one of the maturity stages of the TC39 process .

ECMAScript 5 compatibility table - GitHub Pages

    http://kangax.github.io/compat-table/es5/
    ECMAScript 5 6 2016+ next intl non-standard compatibility table. ... Specifically, `0 in [,]` and `0 in [undefined]` both yield false - whereas in a compliant browser, the former would give `false`, the latter `true`. As such, ES5 array iteration methods can only be …

Can I use... Support tables for HTML5, CSS3, etc

    https://caniuse.com/
    Nov 04, 2019 · "Can I use" provides up-to-date browser support tables for support of front-end web technologies on desktop and mobile web browsers. The site was built and is maintained by Alexis Deveria, with occasional updates provided by the web development community. The design used as of 2014 was largely created by Lennart Schoors. FAQ



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