As of r202125, JavaScriptCore supports all of the new features in the ECMAScript 6 (ES6) language specification. All of the new ES6 features are available in the latest WebKit Nightly and Safari Technology Preview. While we have an implementation of modules, no web-facing API has been finalized yet. ES6 adds a huge number of great features to the JavaScript language and all the JavaScriptCore cont
![ES6 Feature Complete](https://cdn-ak-scissors.b.st-hatena.com/image/square/973f2716d9730fd892ab19f1643e73263f050c09/height=288;version=1;width=512/https%3A%2F%2Fwebkit.org%2Fwp-content%2Fuploads%2FFigure-3.png)