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2021-04-02 02:24:13 +03:00

14 lines
434 B
JavaScript

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