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Chris Tate
31332427b6
- Preserve fresh constructor identity and shared captures across local class instances. - Carry constructors through unknown values without a JavaScript engine. - Support runtime-length spreads into fixed and rest parameters.
17 lines
541 B
JavaScript
17 lines
541 B
JavaScript
function make(value) {
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return class Stored {
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read() { return value; }
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matches(other) { return other === value; }
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};
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}
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const Numbers = make(12);
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const OtherNumbers = make(25);
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const Strings = make("hello");
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const a = new Numbers();
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const b = new OtherNumbers();
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const c = new Strings();
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console.log(Numbers.name, Numbers === OtherNumbers);
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console.log(a.read(), b.read(), c.read());
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console.log(a.matches(12), b.matches(12), c.matches("hello"));
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console.log(a instanceof Numbers, a instanceof OtherNumbers, c instanceof Strings);
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