25 lines
820 B
JavaScript
25 lines
820 B
JavaScript
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'use strict';
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module.exports = function () {
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var set, iterator, result;
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if (typeof Set !== 'function') return false;
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set = new Set(['raz', 'dwa', 'trzy']);
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if (String(set) !== '[object Set]') return false;
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if (set.size !== 3) return false;
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if (typeof set.add !== 'function') return false;
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if (typeof set.clear !== 'function') return false;
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if (typeof set.delete !== 'function') return false;
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if (typeof set.entries !== 'function') return false;
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if (typeof set.forEach !== 'function') return false;
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if (typeof set.has !== 'function') return false;
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if (typeof set.keys !== 'function') return false;
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if (typeof set.values !== 'function') return false;
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iterator = set.values();
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result = iterator.next();
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if (result.done !== false) return false;
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if (result.value !== 'raz') return false;
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return true;
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};
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