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13 lines
493 B
13 lines
493 B
// 19.1.2.9 / 15.2.3.2 Object.getPrototypeOf(O) |
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var has = require('./_has'); |
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var toObject = require('./_to-object'); |
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var IE_PROTO = require('./_shared-key')('IE_PROTO'); |
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var ObjectProto = Object.prototype; |
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module.exports = Object.getPrototypeOf || function (O) { |
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O = toObject(O); |
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if (has(O, IE_PROTO)) return O[IE_PROTO]; |
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if (typeof O.constructor == 'function' && O instanceof O.constructor) { |
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return O.constructor.prototype; |
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} return O instanceof Object ? ObjectProto : null; |
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};
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