Echo JS 0.11.0

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tracker1 265 days ago. link 2 points
Decent primer on ES6 class syntax.  

1. Should use `TypeError` for the error message for an abstract class.

2. Missing class field declarations[0] (stage-3, but eminent).

    class Foo {
      bar = 'instance';
      baz = () => console.log(`I'm context bound to ${this.bar} yo!`);
    }

    var f = new Foo();
    f.baz();

Aside: Been working with InDesign's ExtendScript the past few weeks, it's been extremely painful.  Won't even shim to ES5 completely/properly, cheating just to get most of ES5, and ES6 modules with Webpack.

[0] https://github.com/tc39/proposal-class-fields

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