main
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Last change
on this file since 79a0317 was 79a0317, checked in by stefan toskovski <stefantoska84@…>, 3 days ago |
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F4 Finalna Verzija
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Property mode
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100644
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File size:
855 bytes
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| 1 | 'use strict';
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| 2 | var call = require('../internals/function-call');
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| 3 | var getBuiltIn = require('../internals/get-built-in');
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| 4 | var wellKnownSymbol = require('../internals/well-known-symbol');
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| 5 | var defineBuiltIn = require('../internals/define-built-in');
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| 6 |
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| 7 | module.exports = function () {
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| 8 | var Symbol = getBuiltIn('Symbol');
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| 9 | var SymbolPrototype = Symbol && Symbol.prototype;
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| 10 | var valueOf = SymbolPrototype && SymbolPrototype.valueOf;
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| 11 | var TO_PRIMITIVE = wellKnownSymbol('toPrimitive');
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| 12 |
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| 13 | if (SymbolPrototype && !SymbolPrototype[TO_PRIMITIVE]) {
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| 14 | // `Symbol.prototype[@@toPrimitive]` method
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| 15 | // https://tc39.es/ecma262/#sec-symbol.prototype-@@toprimitive
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| 16 | // eslint-disable-next-line no-unused-vars -- required for .length
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| 17 | defineBuiltIn(SymbolPrototype, TO_PRIMITIVE, function (hint) {
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| 18 | return call(valueOf, this);
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| 19 | }, { arity: 1 });
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| 20 | }
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| 21 | };
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