// 22.1.3.31 Array.prototype[@@unscopables]
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var UNSCOPABLES = require('./_wks')('unscopables');
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var ArrayProto = Array.prototype;
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if (ArrayProto[UNSCOPABLES] == undefined) require('./_hide')(ArrayProto, UNSCOPABLES, {});
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module.exports = function (key) {
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ArrayProto[UNSCOPABLES][key] = true;
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};
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