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18 lines
692 B
18 lines
692 B
'use strict'; |
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var $ = require('../internals/export'); |
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var IS_PURE = require('../internals/is-pure'); |
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var anObject = require('../internals/an-object'); |
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var aFunction = require('../internals/a-function'); |
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var iterate = require('../internals/iterate'); |
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// `Set.prototype.isSupersetOf` method |
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// https://tc39.github.io/proposal-set-methods/#Set.prototype.isSupersetOf |
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$({ target: 'Set', proto: true, real: true, forced: IS_PURE }, { |
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isSupersetOf: function isSupersetOf(iterable) { |
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var set = anObject(this); |
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var hasCheck = aFunction(set.has); |
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return !iterate(iterable, function (value) { |
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if (hasCheck.call(set, value) === false) return iterate.stop(); |
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}).stopped; |
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} |
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});
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