mirror of
https://github.com/fluencelabs/assemblyscript
synced 2025-04-26 07:22:21 +00:00
34 lines
746 B
TypeScript
34 lines
746 B
TypeScript
var sym1 = Symbol("123");
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var sym2 = Symbol("123");
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assert(sym1 !== sym2);
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var sym3 = Symbol.for("123");
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var sym4 = Symbol.for("123");
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assert(sym3 === sym4);
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var key1 = Symbol.keyFor(sym1);
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var key2 = Symbol.keyFor(sym2);
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assert(key1 === null);
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assert(key2 === null);
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var key3 = Symbol.keyFor(sym3)!;
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var key4 = Symbol.keyFor(sym4)!;
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assert(key3 == "123");
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assert(key3 == key4);
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assert(Symbol().toString() == "Symbol()");
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assert(sym3.toString() == "Symbol(123)");
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var hasInstance = Symbol.hasInstance;
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var isConcatSpreadable = Symbol.isConcatSpreadable;
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assert(hasInstance.toString() == "Symbol(hasInstance)");
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assert(isConcatSpreadable.toString() == "Symbol(isConcatSpreadable)");
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Symbol.hasInstance;
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Symbol.isConcatSpreadable;
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// ...
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