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Customizing ES6 via well-known symbols
In ECMAScript 6, the object Symbol has several properties that contain so-called well-known symbols (Symbol.iterator, Symbol.hasInstance, etc.). These let you customize how ES6 treats objects. This blog post explains the details. Warning # Implementation of the features described here is work in progress. Consult the “ECMAScript 6 compatibility table” for what is supported where (spoiler: not muc
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GitHub - rollup/rollup: Next-generation ES module bundler
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