autocreate

`new`-less classes for ES7/Babel, TypeScript, CoffeeScript, etc.

v1.2.0 URL: https://unpkg.com/autocreate@1.2.0/autocreate.js

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class classes constructors decorators ES6 ES7 new Babel TypeScript CoffeeScript

ts-error

An extendable Error class that actually works, with TypeScript definition files, supporting old and new style classes and compatibility even with the oldest browsers

v1.0.6 URL: https://unpkg.com/ts-error@1.0.6/lib/cjs.js

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Error Extendable JavaScript ES6 esnext TypeScript

redefine

A lightweight utility for ES6 like classes and an easier ES5 aware object properties definition introducing new, performance oriented, patterns.

v0.2.1 URL: https://unpkg.com/redefine@0.2.1/build/redefine.js

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super ES5 ES6 defineProperty defineProperties Object create inheritance security bind bound lazy performance safe mixin Class OOP

es6-class-mixin

Tiny tool to add mixins for ES6 classes.

v1.0.5 URL: https://unpkg.com/es6-class-mixin@1.0.5/index.es6

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ES2015 ES6 mixin class inheritance

has-symbols

Determine if the JS environment has Symbol support. Supports spec, or shams.

v1.1.0 URL: https://unpkg.com/has-symbols@1.1.0/index.js

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Symbol symbols typeof sham polyfill native core-js ES6