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13 lines
426 B
13 lines
426 B
var classof = require('../internals/classof'); |
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var wellKnownSymbol = require('../internals/well-known-symbol'); |
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var Iterators = require('../internals/iterators'); |
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var ITERATOR = wellKnownSymbol('iterator'); |
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module.exports = function (it) { |
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var O = Object(it); |
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return O[ITERATOR] !== undefined |
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|| '@@iterator' in O |
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// eslint-disable-next-line no-prototype-builtins |
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|| Iterators.hasOwnProperty(classof(O)); |
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};
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